Originally Posted by
Emberlily
It's certainly an incredibly risky move but for mid to higher higher level characters death isn't quite as much of a risk as it would be in our world. Several jokes throughout the comic poke fun at how death is just a nuisance to adventurers. Maybe he was even prepared to pull a Belkar's-plan-for-Miko and die to cause V to suffer consequences, then get raised. [edit: His expressions in comic 677 make it seem clear to me this isn't just a business deal for him. He gets very visibly frustrated when it looks as if it doesn't work and very satisfied when it does.]
If the wizard knew about familicide, and thought V could still cast it, then yes that would be a stupid risk to take even with Raise Dead, but we don't kno that's the case.