>>21055561How?
Azumarrill even under belly drum won't kill Empoleon in time.
252+ SpA Empoleon Flash Cannon vs. 0 HP / 0 SpD Azumarill: 156-184 (45.7 - 53.9%) -- 46.1% chance to 2HKO
252+ Atk Huge Power Azumarill Play Rough vs. 252 HP / 4 Def Empoleon: 99-117 (26.6 - 31.4%) -- guaranteed 4HKO
+6 252+ Atk Huge Power Azumarill Aqua Jet vs. 252 HP / 4 Def Empoleon: 176-207 (47.3 - 55.6%) -- 78.5% chance to 2HKO
Besides, even if conditions were in favor towards Azumarill, why not switch to something else?
Empoleon's got the bulk and the move pool to take on ALOT of fairies.