Dark Blade

by drake_o_

deal 0 damage. Add damage equal to your current Darkness; slay:increase all cards’ Darkness by 1

Darkness

When dealt damage, take 1 less damage per stack of Darkness. When Darkness runs out, gain Stunned. Your Maximum is lowered by your total Darkness.

slay

Slay triggers when a foe is brought to exactly 0 health.