Chilling Seal (Japanese: 氷の封印 Seal of Ice) is a passive type B skill which debuted in Fire Emblem Heroes; unlike most passive skills in Heroes, Chilling Seal comes in only one tier. Units with Chilling Seal, at the start of its player's phase, take the enemy unit with the lowest Defense and drops their Attack and Speed significantly through its next action; it is currently unknown what happens in the event of an enemy Defense tie, such as in part 1 of the Book I prologue (where all enemies have 3 Defense).
Chilling Seal cannot be passed to other units through skill inheritance; as a result, it can only be used by Gunnthrá.
|Heroes||At start of user's phase, reduces Attack and Speed of enemy with lowest Defense by -6 each through its next action.||--||--||Cost: 300 SP|
If more than one enemy has the lowest defense, all enemies will be debuffed.
|Units||Gunnthrá: Voice of Dreams|
Etymology and other languages
|Names, etymology and in other regions|
|Language||Name||Definition, etymology and notes|
|Japanese||氷の封印||Seal of ice|
|Spanish||Hechizo Gélido||Cold spell|
|French||Sceau de Glace||Seal of ice|
|Italian||Sigillo Gelante||Freezing seal|
Icon of the Chilling Seal skill in Heroes.