Kabuto is a great addition to the gnw roster, it's basically a edo hashi which trade 5 targets of his mystery for immunity to debuffs and a revive as standard. I can imagine pair him + hashi + WM + tsunade... but still all 600k+ power in CN are just mindlessly spamming deidara and kakuzu.

Yota (beside the fact that i've no idea who he is) i really have no idea how he is supposed to be used in the kakuzu meta, probably as a way to destroy hashirama/onoki/gaara. It could become great against madara 5 kage and sharkisame... but it depends if he can survive 2 deidara's/kakuzu's standard.