Transient Information

Rarity	3	Cost	8
HP	243+101.673*(Lv-1)	ATK	357+55.469*(Lv-1)
HP @ Lv 60	6241.707	ATK @ Lv 60	3629.671
Max HP+20 Lv, +2000 HP	10275.167	Max ATK+20 Lv, +2000 ATK	6739.051

Skills
Doodling Santa	[Phase StartTriggers on their player's first turn of each phase, before [Turn Start] effects. Effects of the same timing from same unit are all triggered together before they are applied.] Apply Weapon Change (Magic)Changes the unit's weapon type to Magic-ranged for 1 turn. (Buff) to self / 50~100% [Before HittingFor each unit with >0HP hit. Triggered and applied before damage calculation, before attack damage is applied, after [Before Being Attacked] effects, before [When Hit] effects from the target. Effects of the same timing from same unit are all triggered together before they are applied.] Apply HP reduction post-debuffAcquire skill for 1 turn: [After Debuff] -500 HP to self / 100% (Irremovable Debuff) to hit units / 35~70% [On MissAfter this unit attacks but hits nothing. Effects of the same timing from same unit are all triggered together before they are applied.] +8~16 CP to self / 45~90%
One Season Only	[Phase StartTriggers on their player's first turn of each phase, before [Turn Start] effects. Effects of the same timing from same unit are all triggered together before they are applied.] Apply VanityA debuff with no effect that lasts for 1 turn (Debuff) to self / 45~90% [After DebuffDoes not trigger with skill-disabling debuffs. Does not trigger if debuff is nullified, reflected, or resisted. Shares timing with effect that inflicted debuff. Effects of the same timing from same unit are all triggered together before they are applied. Will not trigger when debuff is already held. Debuff-type status skills self-activate with this timing.] +4~8 CP to self and allies directly adjacent to self / 20~40% [After DebuffDoes not trigger with skill-disabling debuffs. Does not trigger if debuff is nullified, reflected, or resisted. Shares timing with effect that inflicted debuff. Effects of the same timing from same unit are all triggered together before they are applied. Will not trigger when debuff is already held. Debuff-type status skills self-activate with this timing.] Apply Arousal+10CP/turn for 1 turn (Buff) to self and allies directly adjacent to self / 25~50%
The Great Frost	[Before HittingFor each unit with >0HP hit. Triggered and applied before damage calculation, before attack damage is applied, after [Before Being Attacked] effects, before [When Hit] effects from the target. Effects of the same timing from same unit are all triggered together before they are applied.] Apply FreezeDEF Down by 1.1x ~ 2.2x, -200~-400HP/turn for 4 turns (Debuff) to hit units / 25~50% [Before HittingFor each unit with >0HP hit. Triggered and applied before damage calculation, before attack damage is applied, after [Before Being Attacked] effects, before [When Hit] effects from the target. Effects of the same timing from same unit are all triggered together before they are applied.] Apply Remove BuffRemove one buff (Debuff) to hit units / 20~40%
Park Mascot	[Phase StartTriggers on their player's first turn of each phase, before [Turn Start] effects. Effects of the same timing from same unit are all triggered together before they are applied.] -500~-1000 HP to enemies in a 3x3 area around the 2nd square in front of self / 40~80% [Status ResistanceTriggers directly before receiving any status, including those that would normally not be accepted due to pre-existing acquisition of the same status. Prevents target statuses from being applied at all and removes them if already present. The application of the any status that confers Status Resistance will trigger its own Status Resistance skill effects.] Resist 5 statuses Expand Freeze, Freeze (Stackable 1), Freeze (Stackable 2), Freeze (Stackable 3), Freeze (Stackable 4) / 50~100% [Attack ModifierAll modifiers stack with each other. Piercing modifiers do not stack with other piercing modifiers of the same status.] Deal extra damage against 5 statuses Expand Freeze (x1.5), Freeze (Stackable 1) (x1.5), Freeze (Stackable 2) (x1.5), Freeze (Stackable 3) (x1.5), Freeze (Stackable 4) (x1.5) / 100%

Traceless Sown Ice ArtFern Frost
Apply FreezeDEF Down by 1.1x ~ 2.2x, -200~-400HP/turn for 4 turns (Debuff) to hit units	2x
Expand Show equipable ARs (71)

Illustration	Fuguri, LW
Scenario	――
Voice	Chikahiro Kobayashi
Sex/GenderAs defined in the game data, might not be accurate to official localization	None
Gate	Tír na nÓg
Guild	Creators;Unaffiliated
School	Tokyo Santa School
Release Date	2025-03-21 (v5.7.0)

Research Files

CollapseTranslated from Japanese

Transient from the world of Tir na Nog. He's a self-proclaimed delinquent of Santa School and a street graffiti artist. Jack Frost is a fairy born from the belief that the frost that forms on windows is his (wrong)doing. And due to the wishes of people who wish winter would end already so spring would get here, Jack doesn't like to show his face in public. The chill around him is another manifestation of that belief, which is strong enough to give you the shivers if you get near him. This has put Jack into a negative feedback loop of cooling worse on social interactions and getting increasingly harsher when he speaks. Children however have been the only ones to get close to him without paying any mind to his icy aura. It's both a reason he's a punk turned Santa as well as the reason he's continued being a mascot at one certain theme park. When he's on the clock there, he goes by Frosty and speaks completely differently. Jack loves the smiles of the young, but whenever he sees children who want to grow up already, he can't help but think about his inability to stick around to see the spring. He has a secret sense of commonality with seal users who are similarly alone. Only after a certain miraculous winter has Jack been able to sign on a summoning contract.

ExpandOfficial Japanese

Relation	From Others		To Others
Like	Hastur→		→ Snegurochka
Dislike	Enigma→		→

{{#vardefine:transient jp en research file|Jack Frost's Sacred Artifact is the frost fairy's scratch marks that are left on the world. His power uses spray cans as a medium and is said to paint nature in reds and oranges and leaves frost on windows. In Tokyo, Jack Frost works as an anonymous graffiti artist focused most in Arakawa Ward hoping to make a masterpiece art piece that proves he lived his life to the fullest. Every piece he does has an alphabetical signature signed on it, filled with his wish to not disappear and hopes that at least someone remembers him. At long last, his dull gray world has started to brighten with color. One day at the theme park, someone reached out to him, someone praised his art, and someone thawed his heart out. Many bonds have come together to make a miracle, bringing Jack beyond winter and to his summoner among the spring cherry blossoms. And since that winter, the people around him have said the chilly aura hanging around Jack seems to have changed. A certain math genius has figured out his identity between Frosty and his signature, which led to an enthusiastic invitation to join the Creators. A certain data life form sees him as a rival, wondering if his Master is into any white furred animal.

Rarity	5	Cost	24
HP	1122+105.245*(Lv-1)	ATK	1278+43.735*(Lv-1)
HP @ Lv 70	8383.905	ATK @ Lv 70	4295.715
Max HP+20 Lv, +2000 HP	12488.805	Max ATK+20 Lv, +2000 ATK	7170.415

Skills
Graffiti Santa	[Phase StartTriggers on their player's first turn of each phase, before [Turn Start] effects. Effects of the same timing from same unit are all triggered together before they are applied.] Apply Weapon Change (All)Changes the unit's weapon type to All-ranged for 2 turns. (Buff) to self Apply HP reduction post-debuffAcquire skill for 3 turns: [After Debuff] -1000 HP to self / 100% (Irremovable Debuff) to enemies on the entire board / 50~100% [Phase StartTriggers on their player's first turn of each phase, before [Turn Start] effects. Effects of the same timing from same unit are all triggered together before they are applied.] Apply Obstruct-15% skill activation rate for 2 turns (Debuff) to enemies on the entire board / 45~90% [On MissAfter this unit attacks but hits nothing. Effects of the same timing from same unit are all triggered together before they are applied.] +25~50 CP to self / 45~90%
Too Cool Cast	[Turn StartTriggers on turn start of their player, after [Phase Start] effects, before [Opponent Turn Start] effects. Effects of the same timing from same unit are all triggered together before they are applied.] Apply VanityA debuff with no effect that lasts for 1 turn (Debuff) to self / 45~90% [After DebuffDoes not trigger with skill-disabling debuffs. Does not trigger if debuff is nullified, reflected, or resisted. Shares timing with effect that inflicted debuff. Effects of the same timing from same unit are all triggered together before they are applied. Will not trigger when debuff is already held. Debuff-type status skills self-activate with this timing.] +4~8 CP to self and allies 1 square around self / 20~40% [After DebuffDoes not trigger with skill-disabling debuffs. Does not trigger if debuff is nullified, reflected, or resisted. Shares timing with effect that inflicted debuff. Effects of the same timing from same unit are all triggered together before they are applied. Will not trigger when debuff is already held. Debuff-type status skills self-activate with this timing.] Apply Arousal+10CP/turn for 1 turn (Buff) to self and allies 1 square around self / 30~60%
Great Frost Piecer	[Before HittingFor each unit with >0HP hit. Triggered and applied before damage calculation, before attack damage is applied, after [Before Being Attacked] effects, before [When Hit] effects from the target. Effects of the same timing from same unit are all triggered together before they are applied.] Apply Drain-10% skill activation rate, -10CP/turn for 2 turns (Debuff) to hit units Apply Remove BuffRemove one buff (Debuff) to hit units / 40~80% [Before HittingFor each unit with >0HP hit. Triggered and applied before damage calculation, before attack damage is applied, after [Before Being Attacked] effects, before [When Hit] effects from the target. Effects of the same timing from same unit are all triggered together before they are applied.] Apply FreezeDEF Down by 1.1x ~ 2.2x, -200~-400HP/turn for 4 turns (Debuff) to hit units / 45~90%
Your Very Own Mascot	[Phase StartTriggers on their player's first turn of each phase, before [Turn Start] effects. Effects of the same timing from same unit are all triggered together before they are applied.] -1000~-2000 HP to enemies on the entire board / 45~90% [Turn StartTriggers on turn start of their player, after [Phase Start] effects, before [Opponent Turn Start] effects. Effects of the same timing from same unit are all triggered together before they are applied.] (If CP = 100) Apply FreezeDEF Down by 1.1x ~ 2.2x, -200~-400HP/turn for 4 turns (Debuff) to enemies on the entire board (If CP = 100) Apply Remove all buffsRemoves all buffs. Not nullified or reflected by Nullify and Reflect Debuff, respectively. (Debuff) to enemies on the entire board / 50~100% [Status ResistanceTriggers directly before receiving any status, including those that would normally not be accepted due to pre-existing acquisition of the same status. Prevents target statuses from being applied at all and removes them if already present. The application of the any status that confers Status Resistance will trigger its own Status Resistance skill effects.] Resist 5 statuses Expand Freeze, Freeze (Stackable 1), Freeze (Stackable 2), Freeze (Stackable 3), Freeze (Stackable 4) / 50~100% [Attack ModifierAll modifiers stack with each other. Piercing modifiers do not stack with other piercing modifiers of the same status.] Deal extra damage against 5 statuses Expand Freeze (x2), Freeze (Stackable 1) (x2), Freeze (Stackable 2) (x2), Freeze (Stackable 3) (x2), Freeze (Stackable 4) (x2) / 100%

Traceless Sown Ice ArtFern Frost
-1500~-3000 HP to hit units + Apply Freeze (Stackable 1)DEF Down by 1.1x ~ 2.2x, -200~-400HP/turn for 4 turns (Debuff) to hit units	4x
Expand Show equipable ARs (71)

Illustration	Fuguri, LW
Scenario	――
Voice	Chikahiro Kobayashi
Sex/GenderAs defined in the game data, might not be accurate to official localization	None
Gate	Tír na nÓg
Guild	Creators;Unaffiliated
School	Tokyo Santa School
Release Date	2025-03-21 (v5.7.0)

CollapseTranslated from Japanese

Transient from the world of Tir na Nog. He's a self-proclaimed delinquent of Santa School and a street graffiti artist. Jack Frost is a fairy born from the belief that the frost that forms on windows is his (wrong)doing. And due to the wishes of people who wish winter would end already so spring would get here, Jack doesn't like to show his face in public. The chill around him is another manifestation of that belief, which is strong enough to give you the shivers if you get near him. This has put Jack into a negative feedback loop of cooling worse on social interactions and getting increasingly harsher when he speaks. Children however have been the only ones to get close to him without paying any mind to his icy aura. It's both a reason he's a punk turned Santa as well as the reason he's continued being a mascot at one certain theme park. When he's on the clock there, he goes by Frosty and speaks completely differently. Jack loves the smiles of the young, but whenever he sees children who want to grow up already, he can't help but think about his inability to stick around to see the spring. He has a secret sense of commonality with seal users who are similarly alone. Only after a certain miraculous winter has Jack been able to sign on a summoning contract.

ExpandOfficial Japanese

CV

Event	Line
Event (Shop)	Line
Expand Missing lines (for translators) summon battle move attack skill hit-minor hit-major hit-major-2 charge charge-2 ko love love-2 title title-2 open open-2 close close-2 greeting encouraging touched conversation-1 conversation-2 conversation-3 conversation-4 self character-1 character-2 character-3 character-4 event event-1 event-2 event-3 event-4 special special-1 special-2 special-3 special-4 specialevent specialevent-1 specialevent-2 specialevent-3 specialevent-4

Appearances

Transient Summons

Transient	Transient Summon
Jack Frost ()	- New Semester! 2025 Part 1 (2025) - One-time only, Paid Stone New Semester! 2025 Part 1 (2025)

Notes

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11 hours 43 minutes ago

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Suddenly craving polar bear milk, and it's ain't Nestle.

Expand v t e Transients
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From Kitezh	Chernobog Ded Kresnik Perun Q'ursha Reprobus Snegurochka Volkh Vseslav Volos
From Tír na nÓg	Balor Barguest Boogeyman Cait Sith Cu Sith Jack Frost Krampus Leannan Sidhe Leib MacRoich Melusine Raven Arthur Robinson Tomte Yule
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From El Dorado	Cipactli Hombre Tigre Itzamna Ixbalanque Tezcatlipoca Xolotl
From Aaru	Horus Seth Sphinx
From Old Ones	Azathoth Cthugha Dagon Hastur Nodens Nyarlathotep Tindalos Tsathoggua Y'golonac Yig
From Agisymba	Manticore
From Utopia	Algernon Breke Nomad Quantum R-19 Willie Wildcat
From Tokyo	Alice Arc Bertro Bohemio Choji Christine Claude Curren & MS-C1 Duo Eita Ellie Furufumi Gunzo Ikutoshi Jacob Jugo Kengo Kenta Kirito Kotaro Kuniyoshi Kurogane Kyoma Kyuma Licht Maria Mineaki Motosumi Nobuharu Oscar Ryota Sanzo Shinya Shiro Shuichi Taurus Mask Tetsuya Toji Tuaring Yuma ∀Isaac
From an unknown place	Catoblepas Enigma Protagonist

Jack Frost

Transient Information

Research Files

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Appearances

Transient Summons

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