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I only see the use of dark magic in blinding, slowing down (and even that depends on the units you cast it on), and suggesting... The last one is really worthwhile, especially when you cast it on 30 Emerald Dragons and use them to attack the enemy's Rangers... And you have no losses :) And they kill each other) But dark magic for Warlocks is not the best option, believe me... Okay, I'll stop the off-topic now...