Next ultimate skin thoughts

Who do you think the next ultimate skin is going to be for? Who do you want it to be for? What would you want it to be like?

I can't even begin to fathom who actually IS going to get the next one, but I think Karma or Cassiopeia would be good candidates for one.

It would stray from her theme, but I think if Cass got one that used fire instead of poison it would be pretty dope.