For my take on Big Chill, I'll make him more of a moth since I get moth vibes from Big Chill I guess. I'm keeping his ability to fly, tranlusive body and his Ice Breath because what's the point of being called Big Chill if you aren't Chill am I right? No, ok. As always, I'll be giving him new abilities, for his 1st new ability I'll be giving him the ability to create an Icy Armor, which means if he's in a really cold place like Antarctica or space, his body will automatically create armor that is made out of ice, and that ice is hard to break... well except for stronger beings. His 2nd New ability is Snow Storm, if Big Chill Shoots Ice with his Ice Breath, it'll cause a massive snow storm and I forgot to mention that snow makes Big Chill really powerful and quick so the ability is actually pretty useful. His last ability is Invisibility, Idk if he already has that ability or not but I'm going it ti him, every time Big Chill wears his wings like a cloak he'll turn invisible which is useful for stealthy stuff.

Abilities-

Ice Breath

Translusive Body

Flight

Ice Armor

Snow Storm

Snow Strength

Invisibility