Farigiraf has gotten bulky and decently slow, so it also getting Trick Room whilst also having Armor Tail for blocking priority / prankster moves seems like it could actually be great in VGC. Helping Hand and Wish could be good choices too.For the VGC players looking here right now, the last Ally Switchers now that it's no longer a TM are Farigiraf, Spiritomb, Cresselia, Hoopa, Polteageist, Meowscarada, Houndstone, Armarouge, Ceruledge and Espathra. Hoopa is largely irrelevant but Cresselia, Houndstone, Farigiraf and Meowscarada could still be pretty toxic
Also has the choice of running Sap Sipper for two different immunities for Ally Switch.