Definitely choosing Scarecrow Mimicry. It's a power that seems the best out of all of these. Pixel Mimicry is definitely better but I prefer the former simply because it has more applications, plus I find it badass to be a scarecrow in the night!
Scarecrow. I may be flammable but you can't tell me I wouldn't have some fun scaring the crap out of little kids at night. Have them make scary stories about me.
