Does anyone have anything positive to say about the Death Knights? They're just awful. They attack weakly once per battle and then die from a counterattack. When you're sieging a castle, the towers don't even bother targeting them.
In a duel, you think, "Oh, these guys are useless," and you don't pay attention to them, but then they run up and attack everyone around (and if it's a critical hit), you think, "Where was I before?" They're like kamikaze soldiers – they rush in, and you don't know if they'll make it or be killed along the way, but if they do make it...