Chernobog

Chernobog is a shadowy deity in Slavic mythology, often associated with darkness, misfortune, and chaos. Mentioned in medieval chronicles as a god feared rather than worshiped, he is believed to embody the destructive and unlucky forces of the world, standing in contrast to benevolent powers like Belobog. Though details of his cult remain scarce, Chernobog endures in folklore and modern interpretation as a symbol of duality, representing the necessary balance between light and dark in Slavic cosmology.

Czernobog appeared in both the American Gods novel and TV show.

BASIC Law of Misfortune
Attack 1 (400%ATK) enemy with a 50% chance to place [Terrify] on the target for 2 turns. If this hero joins an attack or Retaliate's, attack all enemies (400%ATK) instead. Attacks ignore {Intercept} and {Charm}.

CORE Cooldown 4 Dark Assault
Attack 1 enemy (135%ATK) 3 times. Place [Retaliate] on this hero for 2 turns. If Belobog is on the team, {Buff} cannot be removed or reduced. Also, if the enemy is defeated, Increase this hero's Divinity by 100%.
Awakening III: Place [Phoenix] on this hero for 1 turn which does not reduce on turn.

ULTIMATE 300 1250 Extinguish Light
Attack 1 enemy (160%ATK) 3 times. If the target's MAX HP is greater than this hero, each hit will inflict an additional 5% of the target's MAX HP. If the target's MAX HP is lower than this hero, each hit will always Strong Hit.
Awakening I: Place [Banish] on enemies defeated by this ability for 2.

PASSIVE Imposing Presence
After this hero joins an attack, gains an Extra Turn or Retaliate's, this hero's next ability will ignore 15% of the target's DEF and ignore {Shield}, {Barrier}, {Immortal}, {Ward} and {DEF Up}.
Awakening V: After 5 enemy turns, if this hero is defeated, revive this Hero with 100% HP and Turn Meter. If Belobog is on the team, remove [Banish] and [Block Revive] before reviving.

IMPRINT Imposing Presence
After this hero joins an attack, gains an Extra Turn or Retaliate's, this hero's next ability will ignore 15% of the target's DEF and ignore {Shield}, {Barrier}, {Immortal}, {Ward} and {DEF Up}.
Source: Fateless Videos