>>34208840Naganadel is extremely centralizing and forces every team to carry a dedicated counter to it. And even then you have to watch out for its coverage moves. For example Heatran walls the standard NP+3 attacks set but gets bopped by HP ground, while Toxapex is 2HKO'd by Thunderbolt and cant do much in return.
Stakataka is surprisingly decent and easily the best TR-mon in the tier. Outside of TR it's pretty much useless though.
Blacephalon is probably the worst of the UB trio. Its "trollish" 107 speed is actually trollish for itself because it's slower than common stuff like Keldeo, Chomp and the plethora of 110s. Its STABs are nukes but it has zero coverage moves and no physical bulk.
Defog is everywhere now as predicted, with Gliscor and Rotom-W being amazing users. Please don't use Defog Lando-T, it really kills the momentum which is everything Landoge is used for.