Yes. He is basically evil, dunno whether lawful or chaotic. And yes, he does have a bad habit of trying to get revenge on people, and failing.
Though he did steal, what, 1800 gold from the Zuma?
He stole some more after he got banned, but that's about right. He supposedly gave it to Terran though to fight Madina or something. Hm, wait a minute...Vellos is that dude in Terran...hmmm...
