Revan and Malak, Sith Lords

Fear
Whenever you cast a spell, Revan and Malak, Sith Lords deal damage to each opponent equal to that spell's converted mana cost.
"We know nothing of what transpired when Revan and Malak met the Sith Emperor. One thing is certain: when they returned, they did so on behalf of their new dark Master."
— Gnost-Dural