Heal is a no brainer, but I'm loving electric with my warrior! It's amazingly powerful, you can drag your pet over enemies and paralyze them while damaging them (maybe regardless of invulnerability phase?). It kicks total ass in Cemeteries, you can simply position your pet where the boss will appear and totally kick their teeth in. Also quite useful at Rock Dragon, where you can freeze the body segments and the eye in their tracks then now 'em down.
Electric plus Jugger is OP as all get out!