Mostly personality change.
Darth Rand is the one goes Balefire from the start (even to women) and sent a guy to his (probable) doom just to flush out his target . The guy returns from his duty mind-controlled, then Rand Balefires THE ENTIRE CASTLE (or was it fortress/stronghold/villa? I forgot) just to make sure the target's dead. He pretty much jinxes everything around him though, including his friends and things he did. Also, he's this close to going nuts.
Jesus Rand has has insane luck going for him, IIRC, and is in complete control of himself.
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My Little Phineas and Ferb: Summer is Magic!