Thunderstone Quest: Darkness Rising

From BoardGameGeek:

Count Mortas feeds off the life force of the citizens of Ebonwood, a pocket dimension shrouded in perpetual twilight. New heroes rise to take down the Count and they too can draw power from the darkness. But they must be careful, if they draw too much power that way all will be lost. Darkness Rising introduces new Corruptions to Thunderstone Quest. These cards will be obtained by players, sometimes by choice, sometimes not. They grant great power, but at steep costs. Darkness Rising is part of The Enemies Among Us, a 2-Quest Kickstarter also featuring Miricelle's Return. -description from the publisher