135 spatk is still well above most Pokemon in the tier right now. And 125 speed is faster than everything except Dragapult who for obvious reasons has no interest in getting near it and Zama who Darkrai doesnt like anyway. Nasty plot sets would not only be absurd in terms of answering it defensively, but offensively all but requires scarfers. It would not be a positive or balanced addition for the tier.
Tell me, how has it gotten powercrept? Because, respectfully, people have a tendency to throw the word around.
I mean, most defensive fairies handle it just fine.
+2 252 SpA Life Orb Darkrai Dark Pulse vs. 252 HP / 56+ SpD Clefable: 164-192 (41.6 - 48.7%) -- guaranteed 3HKO after Leftovers recovery
0 SpA Clefable Moonblast vs. 4 HP / 0 SpD Darkrai: 216-254 (76.5 - 90%) -- guaranteed 2HKO
Which would force darkrai to run sludge bomb. Assuming it’s running the pretty standard set of nasty plot and hypnosis with 2 attacks, it’s now easily walled by Ting Lu.
+2 252 SpA Life Orb Darkrai Dark Pulse vs. 252 HP / 252+ SpD Vessel of Ruin Ting-Lu: 109-129 (21.2 - 25%) -- possible 5HKO after Leftovers recovery
0 Atk Ting-Lu Earthquake vs. 4 HP / 0 Def Darkrai: 127-151 (45 - 53.5%) -- 33.2% chance to 2HKO
so you either rely on focus blast, which is not great, or you run Tera fighting, which make fairies an even better counter. Or you drop hypnosis, but that makes setting up a nasty plot harder.
Darkrai would obviously be great, but I’m not convinced it’s nearly as unwallable as people claim. I also don’t think it “needs” to be suspected, I just think it’s strong points are pretty over blown