I'm thinking of having him go berserk for the last time as he attacks anyone he thinks could hurt the few friends he has left. (since he's going berserk he will attack said friends too but berserk Altair won't realize that)
he also will not trust any humans now that monsters can be permanently killed, so the likelihood of Altair reverting to his murderous self in order to protect his friends is very high
as tempted as I am to have him go all dark, I don't want to destroy all the growth he has gone through in ryslig so he won't go on a killing spree (minus berserk rage) unless something terrible happens to his friends
or, I could still have as a troll when he notices the missing stars and then have him turn back into a lich at the end of his berserk rage since this monster swap allows for multiple changes?