Not to mention Florges isn't a counter nor is Aromatisse, at +1 they are both 2hko'd by Poison Jab after rocks
+1 252+ Atk Mold Breaker Haxorus Poison Jab vs. 252 HP / 252+ Def Florges: 288-340 (80 - 94.4%) -- 50% chance to OHKO after Stealth Rock
+1 252+ Atk Mold Breaker Haxorus Poison Jab vs. 252 HP / 252+ Def Aromatisse: 280-330 (68.9 - 81.2%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
And that's DD not SD... nor is it LO... at which point they won't even be checks lol.
Good luck SDing in front of a rampaging Haxorus :^)
Wow that's very terrifying to be honest , disregard my above statement then of florges walling it. I think the best answer to Haxorus will be faster pokemon that can take advantage of its fragile body. Some of these pokemon can be hydreigon, meinshao, victini etc.