Alright, time to share my thoughts on Urshifu-SS
From a power standpoint, this mon is Amazing, and bad at the same time, Amazing because it destroys a great portion of the meta-game (110 Atk + Guaranteed Crit on Wicked Blow + Immune to Future Sight + Good Movepool + Great STABs
+ this mon giving the meta-game Kung-flu
) and bad because the few good checks harasses Urshifu a lot (Almost every Fairy in OU) although that sounds like an Unhealthy mon now thinking about it), it is kind of hard to switch in safely, and while the speed-tier is good, it's not the best
From a centralization standpoint, this mon is too much for the metagame, there's almost no slightly good counters, and Sucker Punch with Wicked Blow is already asking a lot for the metagame, then the following moves; Close Combat, U-turn, Iron Head, Poison Jab, Drain Punch, Bulk Up, Ice Punch, (and other moves that weren't mentioned) really makes Urshifu Broken, Bulk up in particular makes Urshifu a really hard mon to wall, and one bulk up gives the same attack as choice band
, It really makes good Defense Cores look like a joke, and for counter-play...I don't have anything, I'm only using urshifu to destroy urshifu, and that's the definition of unhealthy, sure, you could use Moltres or Zapdos to Cripple it, but it is far from being Reliable, and is also far from bulking off Wicked Blow Spam; finally this mon can't be crippled by Prankster, so that really shows it's too powerful for the tier
Honestly, it's a pretty fun mon to destroy those annoying walls with Urshifu, but I'll admit, it's broken, so...
I'm gonna vote: BAN