Your Azumarill is nice, but there are a few things that should be improved. First of all, your EVs should be changed to: 92 HP / 252 Atk / 164 Spd. The almost max HP investment on your Azumarill is currently unnecessary, as Belly Drum will still take the same percent of HP away and Sitrus Berry will still heal the same amount. Azumarill prefers the extra speed to outspeed unboosted max base 70 speed Pokemon. The 10 SpD is completely pointless, it doesn't give enough of an increase in your SpD to be worth it, so instead we throw around three quarters of our previous HP EVs and your SpD EVs into speed. Your moveset is good, but I would replace Brick Break with Knock Off. Fighting gets nearly redundant coverage with water and fairy, the only thing you would use it for is to hit Steel and water hits that neutrally anyways. Knock Off is a better option, as it allows Azumarill to cripple Pokemon it can't OHKO by removing their items. At +6 Attack, Knock Off can do serious damage, OHKOing physical walls like Ferrothorn after Stealth Rock.