Magic bounce, swapping in something with immunity to T-wave, swapping in someone with immunity to confusion, swapping in a powerful attacker with a lum berry that goes to town on a wasted turn by the enemy (bonus points if you swap in a ground-type sweeper and they give you a free +2 attack with swagger)
The ability is powerful, but it's typically balanced due to limited distribution. Most mons that get it are fragile.
The real complaint should come from something like Klefki getting it, it's made tanky as fuck by its typing despite its only average defense stats
