Warlocks are too floofy and arrogant. Just because they can self revive doesn't mean that they're the best class in the game. They also think that all other classes are useless. I've played with plenty of warlocks and most think that being able to light themselves on fire and throw their little grenades is more useful than putting up a shield that blocks all incoming damage or be able to turn invisible to revive people that otherwise couldn't be revived.