Thor and The Asgardians of the Galaxy

How did you get around the “Play only if you have the Guardian Trait” text on the Guardian cards?

Yeah so when I first made this deck, it was actually with Venom, however following re-watching Avengers Infinity War I wanted to switch in Thor and found it really fun and thematic. However, you do have to ignore that small hitch that technically Thor isn't a guardian. But I personally don't mind ignoring the odd rule to make the game more thematic at times.