Bat Queen Tiamat is one of The Destroyer's chosen and an antagonist in Darksiders. Guarding the top of the Twilight Cathedral, War must retrieve her heart and bring it to Samael.
As one of the Chosen, Tiamat has the ability to grant any wish and offers a trade in exchange for her life. Unfortunately for her, the only wish that War desires is the restoration of balance in the universe, something that even Tiamat can't grant.
