The Drowned Ruins#86 (x3)

Play only before the staging step.

Quest Action: Exhaust a hero you control to immediately declare it as an attacker (and resolve its attack) against any eligible enemy target. Then, the players as a group may spend 1 resource to commit that hero to the quest.

Fey he seemed, or the battle-fury of his fathers ran like new fire in his veins...
–The Return of the King