Manadrain. Really, I've never had much trouble regenerating mana going around killing stuff that actually takes me two or three rounds to kill. Certainly no slower than sitting at the healer. You want massive mana reserves? Use them sparingly, get manadrain, or sit there and spam heal colourless. 1k is nothing when you have 20000 to recover, and you don't hear us whining about it. We just go and kill until we get a restore mod, or manadrain it back.