I think the serious thing here is that the wizard in question is perfectly fine with sacrificing parts of himself and others to fuel his magic. Once is no big deal. Twice and people might look at him funny. Thrice and I'd say he once of his Aspects might start changing.

Is it possible to perform a manuever in combat that results in 2 aspects? For example,  a martial artist tries to sweep out his opponents legs appplying the Knocked on Your Ass and the Dazed aspects. I ask because I was rereading the section on Thaumaturgy and came across the section where is is possible to apply multiple aspects with a Thaumaturgic spell.