Summon a sacrificial altar. Combat start: the unit placed on the altar is sacrificed, granting a copy of one of the items and bonus Health to each Darkflight champion.
Emblems and non-craftable items are corrupted when they're copied, instead becoming Darkflight Essence.
(2) 500 Health
(4) 750 Health
(6) 1000 Health
(8) 1800 Health