>>20318975Well, for steel, you have bisharp, scizor, the most popular mega in high-end OU, ferrothorn and excadrill just to name a few. And all of those are within the top 20 most used pokemon in 1825+ OU right now.
You'll also have aegislash to worry about if it gets unbanned with ORAS (possible) and m-mawile, which generally runs play rough as well.
For pokemon that run fairy moves, your only real concerns are clefable, azumarill, mawile gardevoire and very occasionally, an espeon or gengar running dazzling gleam.
You can cripple an azumarill or mawile on the switch with will-o-wisp, make them unideal counters and most of the special attackers won't be likely to do much after a few calm minds. With clefable, depending on the stat boosts that we see, it might just devolve into a contest of who can crit first.
That said, and considering that it's also weak to poison attacks on stuff like m-venusaur and gengar among others, I'd vastly prefer to deal with sableye's weakness to fairy, a relatively uncommon attacking type.