You’re gonna have to come back and tell us about Kaido Expert. Having tried him before, he succ. 2/2 will always succ and his ability does not compensate for it.
@alplod, even in a dedicated backstab deck, I am not sure that Katara will be that great simply because other than the fact that the cards has the keyword Backstab, it has no utility. It can’t kill anything and has no unique abilities. Even trying to kill something with it would be a hassle and I would much rather prefer to use MDS or Jux on something strong like Rigger for a 5 backstab than Katara.
This is one of the reasons why no one ever plays one drops in their decks like swamp entangler (yas I said it, fite me newbs) because there is no value in the card even though it is cheap. Only one drops I can remember being played is BTA which is just really good ping and the lyo card that replaces itself.