CB Wood Hammer w/ Grassy Terrain 2HKOs Toxapex, Aegis and Buzzwole, 3 of the best defensive pivots in prebank OU. Skarm/Celesteela hard walls it,Celes 2HKO w/ Flames, but Wak can pivot into and burn it. Honestly its a really fun Bulky/Balanced core.
Hence my interest since that's my playstyle. Think I'm going to mess about with it. ((Choice Sets... my bane!!! I really do need to get over my aversion tbh LOL.))
Also, Fini works well because Misty Terrain prevents instant scald burns on Toxapex switch ins. It Wak also protects Fini from Koko/Xurkitree due to electric immunity, and can burn/EQ/use Flare Blitz or Shadow Bone on a predicted switch, but its much better to wisp.