I define him a murder hobo because he's evil and an idiot, basically. And since i have a deep fondness for Lawful Evil, i mostly take offense to the latter.
To be brief, nothing he does, approves of, or champions for make any sense in any practical, if not moral, way. Literally the first thing he does is trying to trick and ambush someone he thinks was his jailer, infront of the people who strolled up to him with them. Like, there are goblins smarter than that, and in their dumb evilness not any goblin pretends to have anything more than 7 charisma and 4 intelligence.
Also, dude sucks you dry if you don't stop him, and happily drinks kids' blood if you slaughter the people at the grove. It's not a phase.
I don't think his situation is a phase either. I just don't see him in such a negative light like some do. I see him as a rogue and a traditional vampire, although he's classified as a vampire spawn who is a slave to a full blooded vampire. Astarion even tells you that he doesn't have all the good attributes of a vampire but mostly the negative ones, such as not being able to walk in sunlight, no reflection, must be invited to walk into someone home, and the constant hunger for blood and he can not turn someone into a vampire, which only a true vampire can do. Astarion is actually very open about what and what he is.
