I've actually gone on a lengthy tangent about Copy: Opp Ability before. To be short, it's hilariously ineffective and weak. It's also too unstable to be a bonus. I think Copy: Opp Bonus is completely viable, though.
I disagree. Almost all clans can be played effectively in mono or half. Rescue
being limited to mono is actually a weakness, not a strength, both for them and for other clans. You can't effectively combine any other clan (discounting certain Leaders) with Rescue
. It kills creativity and that's one of the reasons why some people hate Rescue
. A minor reason comparitively, but still.
I also find fault with your desire for more "unsafe pilling" clans. The overabundance of attack clans is due to their ease of use, not their lack of competition. Introducing a new edgy clan will not dissuade them. Though, I would place money on future clans not having attack bonuses.
I also couldn't help but think of Freaks
when I read your desired playstyle. Overpill on the first round, then play with what your left with. I don't think we need another clan like that at the moment.
Back to the cards:
My Tubba Wumba has nothing to help it win despite it's power and, unless it's bonus is active, even that's not safe (along with his damage). I honestly believe he's too weak to be worth 5*, but as his clan isn't real, it's impossible to say how effective he'd actually be.
Will O'Wisp is comprable to many solid 2*s. I don't see the problem with it.