Sworn enemy.

In my opinion, this ability has only one weakness. Cursed enemies usually die very quickly, and the ability becomes irrelevant. Because of this, playing as a "Chaos Warlock" isn't as fun. There are Druids, Sorcery is off the charts, I've enchanted an arrow with Shock (Chain Lightning, Fireball, Ring of Fire, etc.), I want to cause a big explosion, the cursor automatically finds a target called "Rain of Arrows," and... it turns out that at best, only one stack of weakened "cursed enemies" remains.