A team with 2x +100% eidolons can run SR kamihime and do just fine, as long as you have the right ones. Roll Jewel Gatcha enough and it'll happen. If you have 1, other players with a +100% eidolon should flock to you, making this easy to accomplish. Though you'll probably regret it if you don't at least pick up Amaterasu with a Miracle ticket.