wait whic oomf is this how you know i LUVVVV powerscale. okay if we're talking like they're both serious i think tessa got a great chance because of her unique ability, if she can tap into that before get to her first she got a really big shot. if we talk intention and magic adapation i think magnus got more experience/craft and we also don't know how he act when he doesn't hold back. but BUT tessa mentioned to be the smartest in the warlock gang so it possible she's studying/practicing some sort of technique that been long lost even magnus doesn't know about