When can I form a Held Item contract?

Enhance a Legendary Held Item to +15 and the contract feature unlocks. Rare (max level 5) and Epic (max level 10) Held Items cannot form a contract.

What does Form Contract cost?

It costs 10 Mark of the Strong: Breezy Plains.

Does only the one Aniimo I formed the contract with get stronger?

No. An Aniimo species is engraved on the Held Item, so any Aniimo of that species that equips it gets its core skill enhanced.

What happens when another Aniimo equips a Held Item with a contract?

It shows "Equipped on Non-bonded Pet" and only the core skill enhancement is turned off. The Held Item's Core Effect and Advanced Effect still apply.

Do I need a contract to use Advanced Effect Tier 2?

No. Advanced Effect Tier 2 has nothing to do with contracts. A contract only enhances the Aniimo's core skill.

Do Alpha Aniimo need a contract too?

Alpha Aniimo already have an enhanced core skill, so they do not need a contract.

Can I cancel a contract or change it to another Aniimo?

No. A contract cannot be cancelled or refunded, and a Held Item that already has a contract cannot form a new one.

What happens to the contract when the Aniimo evolves?

The species engraved on the Held Item does not change. Pre- and post-evolution forms are different species (for example, Celestis and Stellarys), so the skill is enhanced only when the species shown on the Form Contract screen equips that Held Item.

Can an Aniimo with no core skill form a contract?

No. The Form Contract button is not active, and it shows "This Aniimo has no core skill, so a contract cannot be formed."

NO. 63NTraining & EvolutionUpdated: 2026.10.21

Aniimo Held Item Contracts – +15 Legendary, 10 Marks of the Strong, Core Skill Boost for Every Aniimo of the Same Species (Table of 50)

Unlocks at +15 on a Legendary Held Item · 10 Mark of the Strong: Breezy Plains · The species is engraved · Equipped on Non-bonded Pet · Separate from Advanced Effect Tier 2 · Difference from Alpha Aniimo · Cannot be undone · What changes for 50 Aniimo

The Form Contract screen — Spirited Feather and Stellarys on the left, Shooting Stars before enhancement (3 stars, up to 15 stacks) and after enhancement (5 stars, up to 20 stacks) on the right, and 10 Mark of the Strong on the Form Contract button at the bottom — The Form Contract screen — Spirited Feather + Stellarys: Shooting Stars 3 stars → 5 stars, up to 15 stacks → 20 stacks

Enhance a Legendary Held Item to +15 and "Form Contract" unlocks. Spend 10 Mark of the Strong: Breezy Plains and an Aniimo species is engraved on that Held Item. Any Aniimo of that species that equips it gets its core skill enhanced. When an Aniimo of another species equips it, it shows "Equipped on Non-bonded Pet" and only the skill enhancement is turned off; the Core Effect and Advanced Effect stay the same. A contract cannot be cancelled or undone. This post covers the contract conditions, the cost, the difference from Alpha Aniimo, where to get Mark of the Strong, and what changes for 50 Aniimo.

How to unlock: enhance a Legendary Held Item (25 kinds) to +15 · Rare (max level 5) and Epic (max level 10) Held Items cannot form a contract
Cost: 10 Mark of the Strong: Breezy Plains
Effect: an Aniimo species is engraved on the Held Item → any Aniimo of that species that equips it gets its core skill enhanced ("Signature Skill Boost")
If another species equips it: "Equipped on Non-bonded Pet" · only the skill enhancement is turned off, the Core Effect and Advanced Effect stay the same
Advanced Effect Tier 2 has nothing to do with contracts
Cannot be cancelled or refunded · a Held Item that already has a contract cannot form a new one
Alpha Aniimo already have enhanced core skills, so they do not need a contract

Form Contract at a glanceAt a glance
• Condition: Legendary Held Item at +15
• Cost: 10 Mark of the Strong: Breezy Plains
• Who gets enhanced: every Aniimo of the same species that equips that Held Item
• If another species equips it: only the skill enhancement is turned off (Core and Advanced Effects stay the same)
• Cancel or refund: not possible

1What is Form Contract?

Form Contract ties a Held Item to an Aniimo species and enhances the core skill of Aniimo of that species.
At the top of the Form Contract screen it says: "After forming a contract, any Stellarys equipped with this Held Item will receive a core skill enhancement."
It does not enhance only the one Aniimo you formed the contract with. The species (for example, Stellarys) is engraved on the Held Item, so any individual of that species that equips it gets its core skill enhanced.
An enhanced skill is marked "Signature Skill Boost".
The item description of Mark of the Strong: Breezy Plains is "Establishes a contract between the Aniimo and its Held Items to enhance the core skill."

2Contract Conditions and Cost

Enhance a Legendary Held Item to +15 and the contract feature unlocks. Before that, it shows "Contract feature unlocked at +15 enhancement".
Each Held Item grade has a different max enhancement level. It is level 5 for Rare, level 10 for Epic and level 15 for Legendary, so Rare and Epic Held Items cannot form a contract.
The cost is 10 Mark of the Strong: Breezy Plains. It shows as "10" next to the Form Contract button.
Form the contract while the Aniimo you want has the +15 Legendary Held Item equipped. Without a Held Item it shows "This Aniimo has no Held Item equipped, so a contract cannot be formed."
For an Aniimo with no core skill, the Form Contract button is not active: "This Aniimo has no core skill, so a contract cannot be formed."
The 25 items below are the Legendary Held Items. Of these, Floral Rainbow Feather comes as Irisalis's contract Held Item from the start when you buy it.

3Example: Spirited Feather + Stellarys

Form a contract between a +15 Spirited Feather and Stellarys and its core skill Shooting Stars changes.
Before enhancement: fires 3 homing stars; each star hit stacks a 1% damage increase, up to 15 stacks
After enhancement: fires 5 homing stars, up to 20 stacks
Might 40, Energy Cost 20, BREAK 100% and Cooldown 1s stay the same.
On the right side of the Form Contract screen you can see the before and after descriptions side by side.

4When Another Species Equips It: "Equipped on Non-bonded Pet"

When an Aniimo of another species equips a Held Item with a contract, the Held Item info shows "Equipped on Non-bonded Pet".
What is turned off then is only the core skill enhancement. The Held Item's Core Effect and Advanced Effect (Tier 1 and Tier 2) still apply.
The screen below shows Celestis equipped with a +15 Fission Needles whose contract was formed with Stellarys. It says "When [Stellarys] is equipped with this Held Item, their signature skill: [Shooting Stars] will be enhanced."
Like Celestis and Stellarys, the pre- and post-evolution forms of an Aniimo are different species. The species shown on the Form Contract screen is engraved on the Held Item. Different evolutions of the same line, like Piopiota and Panpanta, are also different species.

Celestis's Held Item screen — Fission Needles +15, Damage Amp 20.0%, Core Effect, Advanced Effect Tier 1 (10/10) and Tier 2 (15/15), the "Equipped on Non-bonded Pet" label and the text "When [Stellarys] is equipped with this Held Item, their signature skill: [Shooting Stars] will be enhanced." — Celestis equipped with Fission Needles whose contract was formed with Stellarys — "Equipped on Non-bonded Pet", Advanced Effect Tier 1 and Tier 2 stay the same

5Advanced Effect Tier 2 Has Nothing to Do with Contracts

A Held Item's Advanced Effect Tier 2 and Form Contract are separate features. Advanced Effect Tier 2 applies even without a contract.
Form Contract only changes the Aniimo's core skill; it does not change the Held Item's effects (Core Effect and Advanced Effect).
On the Fission Needles screen above, too, Advanced Effect Tier 1 and Tier 2 still show even though it is "Equipped on Non-bonded Pet".

6Difference from Alpha Aniimo

Alpha Aniimo have an enhanced core skill from the start (help text: "Alpha Aniimo are born with enhanced skills. Try catching one!"). So they do not need a contract.
Form Contract applies to the Held Item, not the Aniimo. Every Aniimo of the same species that equips that Held Item is enhanced.
An Alpha Aniimo is enhanced only for that one Aniimo, while a contract applies to every Aniimo of the same species that equips that Held Item.

Alpha Aniimo vs. Form Contract

Method	Who it applies to	What you need
Alpha Aniimo	That one Aniimo (enhanced from the start)	Catch an Alpha Aniimo
Form Contract	Every Aniimo of the same species that equips that Held Item	+15 Legendary Held Item + 10 Mark of the Strong: Breezy Plains

Alpha Aniimo

Who it applies to: That one Aniimo (enhanced from the start)
What you need: Catch an Alpha Aniimo

Form Contract

Who it applies to: Every Aniimo of the same species that equips that Held Item
What you need: +15 Legendary Held Item + 10 Mark of the Strong: Breezy Plains

7Before You Form a Contract

A contract cannot be cancelled, and the Mark of the Strong you spent is not refunded.
A Held Item that already has a contract cannot form a new one. You cannot change it to another species either.
A contract engraves a species on the Held Item, so the contract on the Held Item does not change even when the Aniimo evolves.
Pre- and post-evolution forms are different species, so check which species the Form Contract screen shows before forming the contract.
Whether a Held Item with a contract can be traded has not been confirmed.

8Where to Get Mark of the Strong: Breezy Plains

One contract takes 10. These are the places that give it as a fixed reward.
The Mysterious Vendor has 3 items each day, and you can buy Mark of the Strong only on days it appears.

Where to get Mark of the Strong: Breezy Plains

Source	Amount
Report Alpha Aniimo (report an Alpha Aniimo at the Outpost)	1
Holo-Battle Sim first clear (once per season, for each training)	Hard 1 · Challenge 2
Pathfinder Level 60 · 65 · 70 rewards	5 each
Index Collection reward for 72 species	10
Companion Handbook free tier rewards	5
Companion Handbook paid tier rewards	5
Mysterious Vendor (Shop)	1 for 210,000 Credits · up to 2 on days it appears
Limited-time event tasks	Differs by event

Report Alpha Aniimo (report an Alpha Aniimo at the Outpost)

Amount: 1

Holo-Battle Sim first clear (once per season, for each training)

Amount: Hard 1 · Challenge 2

Pathfinder Level 60 · 65 · 70 rewards

Amount: 5 each

Index Collection reward for 72 species

Amount: 10

Companion Handbook free tier rewards

Amount: 5

Companion Handbook paid tier rewards

Amount: 5

Mysterious Vendor (Shop)

Amount: 1 for 210,000 Credits · up to 2 on days it appears

Limited-time event tasks

Amount: Differs by event

Holo-Battle Sim rewards by difficulty →

🛒

Mysterious Vendor shop list

Prices of all 34 items and how many you can buy at once.

View the shop list

9What Changes for 50 Aniimo with a Contract

There are currently 50 Aniimo whose core skill is enhanced by Form Contract. Aniimo that are not out yet are left out of the table.
"What changes" is the part that differs between the skill descriptions before and after enhancement. For the 3 with the same description (Luminelle, Hexxin and Melloblum), the numbers that change are listed.
The table follows the order of the Korean names.

Core skills enhanced by Form Contract (50 Aniimo)

Aniimo	Core skill	What changes with a contract
Infergon	Lava Breath	Fire Debuff applied: 8 stacks → 12 stacks
Helgon	Wind Counter	Can use other skills and move during the defensive stance
Tuckin	Draw Nourishment	Adds a damage reduction effect
Sherro	Flowing Water Slash	Does not use up puddles when absorbing water
Pawney	Shadow Cut	Greatly increased interruption resistance while spinning, can move while spinning
Panpanta	Hydro Roll	Collision range +50%, speed +20%
Piopiota	Surf	Puddles created: 4 → 6
Somniwing	Ethereal Light Wave	Also instantly restores its own Energy on cast
Eklue	Detect Weakness	Time needed for a Weakness Mark 0.8s → 0.4s, adds a reduction to the damage the target deals
Cornet	Wind Bomb Rush	Energy Cost reduced for each kind of Movement held
Thornblade	Thorny Rain	Gains 1 stack of Sword Dance → the next basic attack goes straight to stage 3
Bouldus	Rock Tackle	Adds Stun to targets it hits
Tromber	Waltz	Also gains [March]
Lunara	Moon Impact	Pulls targets together, then drops the full moon
Magmarex	Lava Punch	Does not remove the target's Fire Debuff
Waleetle	Sandstorm Spin	Energy Cost 10 → 8
Turbo	Nimbi Burst	Energy Cost 10 → 0
Squashel	Blazing Fist Barrage	If the first hit lands on a [Pine Cone] target, the second hit empowers [Punch Rush] even without a mark
Besauce	Charged Geyser	Pressing again at the right timing restores extra Energy
Fulmintis	Lightning Blade Storm	Consecutive slash speed +20%
Blazen	Electrified Impact	Needs 3 less Energy when used in [Overcharged]
Pomawk	Wild Show	Adds Stun to the target, the best release timing comes earlier, Might 70 → 79
Ignitis	Dark Soul	Wide-area surprise attack, damage boost condition HP below 50% → below 70%
Glynsera	Frost Tail Strike	Ice Debuff used for the extra damage: 10 stacks → 5 stacks
Luminelle	Lightning Surge	Bigger increase to basic attack damage and BREAK efficiency (multipliers based on Luminelle's ATK 0.35 → 0.40, 0.20 → 0.25)
Stellarys	Shooting Stars	Stars 3 → 5, up to 15 stacks → 20 stacks
Geoclaw	Icy Gravel Dance	Debuff buildup efficiency +30%, range +30%
Sparkelf	Inspiration	When it ends, restores part of the Energy spent during its duration
Dazmand	Thunder Sweep	Damage area +50%
Rookey	Bouncy Sling	Deals area damage within 2.5m around the target hit
Irisalis	Irisalis Shadow	Clones summoned: 1 → 2
Glacy	Healing Water	Extra healing 10% → 12% of max HP
Leafy	Vitality Blooms	Also restores Ultimate energy, the effect lasts 3s after leaving the area
Irisal	Focused Beam	Gains 5 extra stacks of [Dance Power] after casting
Fenmane	Thunder Field	Extra Lightning hits apply 2 stacks of [Thunderbond]
Hexxin	Euphoric Sonic Blast	Energy restored 10 → 15
Scorchhowl	Burn Breaker	Dashes up to 6m and blasts in front of the locked-on target
Flamerion	Phantom Barrage	Strikes the locked-on target and adds instant Energy recovery, Cooldown 18s → 15s, Might 30 → 14
Bailite	Cozite Nest Sentry	Each hit adds area damage equal to 10% of the original damage
Dreaple	Nimbi Attack	The sheep keeps following the user and keeps chasing the target even after hitting
Minespine	Seismic Wave	Taking damage while it is active adds 1 extra shockwave (1s interval)
Tubster	Gale Guard	When the Shield ends, part of the remaining Shield is restored as HP
Gracewing	Wind of Rejuvenation	Extra healing for Wind Aniimo 3% → 6%
Erlath	Bubbles	Creates 2 Bubbles right away on cast
Grizbo	Critical Hit	Keeps 50% of [Claw Mark] stacks after the damage
Shrubclaw	Charged Blow	Charge time greatly shortened, stuns the target for 1s
Fragrancier	Secret Fragrance Mark	During [Secret Fragrance], 25% chance to deal basic attack damage 1 more time (0.5s interval)
Melloblum	Thorny Blessing	Duration 15s → 22s
Helion	Light Bombardment	Restores HP while it has [Solar Halo], and has a chance not to use up [Solar Halo]
Inferlupa	Unbroken Flameruff Spirit	Fires at the locked-on target first, bounces 5 → 6 ([Full Energy] 7 → 8)

Infergon

Core skill: Lava Breath
What changes with a contract: Fire Debuff applied: 8 stacks → 12 stacks

Helgon

Core skill: Wind Counter
What changes with a contract: Can use other skills and move during the defensive stance

Tuckin

Core skill: Draw Nourishment
What changes with a contract: Adds a damage reduction effect

Sherro

Core skill: Flowing Water Slash
What changes with a contract: Does not use up puddles when absorbing water

Pawney

Core skill: Shadow Cut
What changes with a contract: Greatly increased interruption resistance while spinning, can move while spinning

Panpanta

Core skill: Hydro Roll
What changes with a contract: Collision range +50%, speed +20%

Piopiota

Core skill: Surf
What changes with a contract: Puddles created: 4 → 6

Somniwing

Core skill: Ethereal Light Wave
What changes with a contract: Also instantly restores its own Energy on cast

Eklue

Core skill: Detect Weakness
What changes with a contract: Time needed for a Weakness Mark 0.8s → 0.4s, adds a reduction to the damage the target deals

Cornet

Core skill: Wind Bomb Rush
What changes with a contract: Energy Cost reduced for each kind of Movement held

Thornblade

Core skill: Thorny Rain
What changes with a contract: Gains 1 stack of Sword Dance → the next basic attack goes straight to stage 3

Bouldus

Core skill: Rock Tackle
What changes with a contract: Adds Stun to targets it hits

Tromber

Core skill: Waltz
What changes with a contract: Also gains [March]

Lunara

Core skill: Moon Impact
What changes with a contract: Pulls targets together, then drops the full moon

Magmarex

Core skill: Lava Punch
What changes with a contract: Does not remove the target's Fire Debuff

Waleetle

Core skill: Sandstorm Spin
What changes with a contract: Energy Cost 10 → 8

Turbo

Core skill: Nimbi Burst
What changes with a contract: Energy Cost 10 → 0

Squashel

Core skill: Blazing Fist Barrage
What changes with a contract: If the first hit lands on a [Pine Cone] target, the second hit empowers [Punch Rush] even without a mark

Besauce

Core skill: Charged Geyser
What changes with a contract: Pressing again at the right timing restores extra Energy

Fulmintis

Core skill: Lightning Blade Storm
What changes with a contract: Consecutive slash speed +20%

Blazen

Core skill: Electrified Impact
What changes with a contract: Needs 3 less Energy when used in [Overcharged]

Pomawk

Core skill: Wild Show
What changes with a contract: Adds Stun to the target, the best release timing comes earlier, Might 70 → 79

Ignitis

Core skill: Dark Soul
What changes with a contract: Wide-area surprise attack, damage boost condition HP below 50% → below 70%

Glynsera

Core skill: Frost Tail Strike
What changes with a contract: Ice Debuff used for the extra damage: 10 stacks → 5 stacks

Luminelle

Core skill: Lightning Surge
What changes with a contract: Bigger increase to basic attack damage and BREAK efficiency (multipliers based on Luminelle's ATK 0.35 → 0.40, 0.20 → 0.25)

Stellarys

Core skill: Shooting Stars
What changes with a contract: Stars 3 → 5, up to 15 stacks → 20 stacks

Geoclaw

Core skill: Icy Gravel Dance
What changes with a contract: Debuff buildup efficiency +30%, range +30%

Sparkelf

Core skill: Inspiration
What changes with a contract: When it ends, restores part of the Energy spent during its duration

Dazmand

Core skill: Thunder Sweep
What changes with a contract: Damage area +50%

Rookey

Core skill: Bouncy Sling
What changes with a contract: Deals area damage within 2.5m around the target hit

Irisalis

Core skill: Irisalis Shadow
What changes with a contract: Clones summoned: 1 → 2

Glacy

Core skill: Healing Water
What changes with a contract: Extra healing 10% → 12% of max HP

Leafy

Core skill: Vitality Blooms
What changes with a contract: Also restores Ultimate energy, the effect lasts 3s after leaving the area

Irisal

Core skill: Focused Beam
What changes with a contract: Gains 5 extra stacks of [Dance Power] after casting

Fenmane

Core skill: Thunder Field
What changes with a contract: Extra Lightning hits apply 2 stacks of [Thunderbond]

Hexxin

Core skill: Euphoric Sonic Blast
What changes with a contract: Energy restored 10 → 15

Scorchhowl

Core skill: Burn Breaker
What changes with a contract: Dashes up to 6m and blasts in front of the locked-on target

Flamerion

Core skill: Phantom Barrage
What changes with a contract: Strikes the locked-on target and adds instant Energy recovery, Cooldown 18s → 15s, Might 30 → 14

Bailite

Core skill: Cozite Nest Sentry
What changes with a contract: Each hit adds area damage equal to 10% of the original damage

Dreaple

Core skill: Nimbi Attack
What changes with a contract: The sheep keeps following the user and keeps chasing the target even after hitting

Minespine

Core skill: Seismic Wave
What changes with a contract: Taking damage while it is active adds 1 extra shockwave (1s interval)

Tubster

Core skill: Gale Guard
What changes with a contract: When the Shield ends, part of the remaining Shield is restored as HP

Gracewing

Core skill: Wind of Rejuvenation
What changes with a contract: Extra healing for Wind Aniimo 3% → 6%

Erlath

Core skill: Bubbles
What changes with a contract: Creates 2 Bubbles right away on cast

Grizbo

Core skill: Critical Hit
What changes with a contract: Keeps 50% of [Claw Mark] stacks after the damage

Shrubclaw

Core skill: Charged Blow
What changes with a contract: Charge time greatly shortened, stuns the target for 1s

Fragrancier

Core skill: Secret Fragrance Mark
What changes with a contract: During [Secret Fragrance], 25% chance to deal basic attack damage 1 more time (0.5s interval)

Melloblum

Core skill: Thorny Blessing
What changes with a contract: Duration 15s → 22s

Helion

Core skill: Light Bombardment
What changes with a contract: Restores HP while it has [Solar Halo], and has a chance not to use up [Solar Halo]

Inferlupa

Core skill: Unbroken Flameruff Spirit
What changes with a contract: Fires at the locked-on target first, bounces 5 → 6 ([Full Energy] 7 → 8)

FAQ

Q. When can I form a Held Item contract?: Enhance a Legendary Held Item to +15 and the contract feature unlocks. Rare (max level 5) and Epic (max level 10) Held Items cannot form a contract.
Q. What does Form Contract cost?: It costs 10 Mark of the Strong: Breezy Plains.
Q. Does only the one Aniimo I formed the contract with get stronger?: No. An Aniimo species is engraved on the Held Item, so any Aniimo of that species that equips it gets its core skill enhanced.
Q. What happens when another Aniimo equips a Held Item with a contract?: It shows "Equipped on Non-bonded Pet" and only the core skill enhancement is turned off. The Held Item's Core Effect and Advanced Effect still apply.
Q. Do I need a contract to use Advanced Effect Tier 2?: No. Advanced Effect Tier 2 has nothing to do with contracts. A contract only enhances the Aniimo's core skill.
Q. Do Alpha Aniimo need a contract too?: Alpha Aniimo already have an enhanced core skill, so they do not need a contract.
Q. Can I cancel a contract or change it to another Aniimo?: No. A contract cannot be cancelled or refunded, and a Held Item that already has a contract cannot form a new one.
Q. What happens to the contract when the Aniimo evolves?: The species engraved on the Held Item does not change. Pre- and post-evolution forms are different species (for example, Celestis and Stellarys), so the skill is enhanced only when the species shown on the Form Contract screen equips that Held Item.
Q. Can an Aniimo with no core skill form a contract?: No. The Form Contract button is not active, and it shows "This Aniimo has no core skill, so a contract cannot be formed."

Pro tips

•On the right side of the Form Contract screen you can compare the core skill's before and after descriptions first.
•A contract cannot be undone, so check the Aniimo species shown on the Form Contract screen before you press it.
•You can buy up to 2 Mark of the Strong: Breezy Plains on days it appears at the Mysterious Vendor.

Keywords:#Held Item contract#Form Contract#Held Item Form Contract#Signature Skill Boost#Equipped on Non-bonded Pet#core skill enhancement#Mark of the Strong#Mark of the Strong: Breezy Plains#Legendary Held Item#Held Item +15#Alpha Aniimo skill#Advanced Effect Tier 2#cancel contract#Aniimo contract