The unit in the Darkflight hex is sacrificed at start of combat, granting a copy of a random item they have to each Darkflight champion, and bonus health to each. Emblems and non-craftable items are corrupted when they're copied, instead becoming Darkflight Essence.

Innate: Leap to the enemy backline when combat starts. Assassins' Abilities can critically strike and they gain bonus Critical Strike Chance and bonus Critical Strike Damage.