He is not viable now because he can't deal CC. His mystery require too much chakra and he is too squishy to survive after round 2.
He is better after skill book but now? Meh
Even with revive he will die and die again because he is not like Tobi or Orochimaru who can stand in front line, his normal movement spot is 3rd or 4th so I think instead of give him a revive just give him a self shield and sai's elementals passive.
This post was last edited by Kouka at 2016-11-8 03:17

Still prefer give him a shield more than revive tho.
In term of RB I'd choose GNW Kankuro over him anytime simply because everything he can do, GNW Kankuro do it better. His buff remove is not that great because it's only 3 targets, 60 chakra cost mean he can only use it in 3rd round when most useful buffs already fade away. Not to mention in RB it's totally random, you can't control which team you want to remove buff.