>>47122454Eject Button Cofagrigus/Yamask into Pursuit Slaking. Switch Cofagrigus in on a contact attack, bounce it out, then Slaking guaranteed gets Mummy.
I don't know how mainstream it is, but using Klutz to trick an Assault Vest onto something is always a laugh.
Enemy team reliant, but there's deliberately using Sticky Web on a Magic Bounce pokemon, then abusing Contrary, Defiant, and Competitive.
Putting Flame Orb on bulkymons, so they are immune to Toxic is technically a thing? Bonus points if they can then Trick the Orb away and pick up some lefties or something.
Analytic Magnezone probably counts, but is reliant on playing intermediate players. Many players just automatically assume Magnet Pull when they see Magnezone, so never actually try switching their Steel type out.
Mostly only works for VGC, but can still work in normal, the good ol' Zoroark and Shedinja benchwarmer squad. A rare instance of Team Preview buffing Zoroark, because knowing that both it, and Shedinja are on the team mean the opponent will play like absolute shit. You can do pretty fucking brazen things with Shedinja and Zoroark, too, since the uncertainty and completely different responses to both makes the battle a crapshoot.