This is a Azumarill build that I came up with and hope that will be helpful for anyone searching for a good EV spread.
Stats: HP: 100
Attack: 50
Defense: 80
SpA. Attack: 60
SpD. Defense: 80
Speed: 50
Total: 420
Possible Abilities: Thick Fat, Huge Power (This is the most-used and competitively viable ability)
Hidden Ability: Sap Sipper
Items: Sitrus/Lum Berry
Choice Band
Moveset: Play Rough
Aqua Jet
Waterfall*/ Superpower/ Belly Drum
Protect
*I use this as a more powerful Water-type attack.
EV Spread: 252 HP
64 Attack
28 Defense
164 Special Defense
Nature: Adamant
Offensive Calculations: 64+ AtK Azumarill Superpower vs. 4 HP / 0 Def Bisharp: 132-156 (93.6-110.6%)
64+ AtK Azumarill Play Rough vs. 4 HP / 0 Def Salamence: 86-104 (50.2-60.8%)
64+ AtK Azumarill Play Rough vs. 4 HP / 0 Def Garchomp: 78-92 (42.3-50%)
64+ AtK Azumarill Play Rough vs. 4 HP / 0 Def Hydreigon: 160-192 (95.2-114.2%)
Defensive Calculations: 252 AtK Parental Bond Mega Kangaskhan Double Edge vs. 252 HP / 28 Def Azumarill: 172-204 (83-98.5%)
252+ AtK Bisharp Iron Head vs. 252 HP / 28 Def Azumarill: 84-100 (40.5-48.3%)
252+ SpA Charizard Y Solar Beam vs. 252 HP / 164 SpD Azumarill: 174-206 (84-99.5%)
252+ SpA Choice Specs Latios Thunderbolt vs. 252 HP / 164 SpD Azumarill: 170-200 (82.1-96.6%)
252+ AtK Choice Band Landorus-T Earthquake vs. 252 HP / 28 Def Azumarill: 132-156 (63.7-75.3%)
- This calculation is based on a Doubles Field Setting.
+2 252+ SpA Aegislash-Blade Flash Cannon vs. 252 HP / 164 SpD Azumarill: 166-196 (80.1-94.6%)
-Weakness Policy
Good Counters: Venusaur and it`s Mega Form
Aegislash behind a Substitute (if you don`t run Waterfall)
Bug Bite Scizor
Mega Kangaskhan
Double-targetting with super-effective or very strong attacks.
Final Thoughts: I believe if you are going to use this spread, you should use a Choice Band due to the fact that if you don`t have a
Choice Band and you are using this spread it does not do that much damage to non-super effective targets like
Mega Kangaskhan, or you could run Belly Drum with Sitrus Berry.
Stats: HP: 100
Attack: 50
Defense: 80
SpA. Attack: 60
SpD. Defense: 80
Speed: 50
Total: 420
Possible Abilities: Thick Fat, Huge Power (This is the most-used and competitively viable ability)
Hidden Ability: Sap Sipper
Items: Sitrus/Lum Berry
Choice Band
Moveset: Play Rough
Aqua Jet
Waterfall*/ Superpower/ Belly Drum
Protect
*I use this as a more powerful Water-type attack.
EV Spread: 252 HP
64 Attack
28 Defense
164 Special Defense
Nature: Adamant
Offensive Calculations: 64+ AtK Azumarill Superpower vs. 4 HP / 0 Def Bisharp: 132-156 (93.6-110.6%)
64+ AtK Azumarill Play Rough vs. 4 HP / 0 Def Salamence: 86-104 (50.2-60.8%)
64+ AtK Azumarill Play Rough vs. 4 HP / 0 Def Garchomp: 78-92 (42.3-50%)
64+ AtK Azumarill Play Rough vs. 4 HP / 0 Def Hydreigon: 160-192 (95.2-114.2%)
Defensive Calculations: 252 AtK Parental Bond Mega Kangaskhan Double Edge vs. 252 HP / 28 Def Azumarill: 172-204 (83-98.5%)
252+ AtK Bisharp Iron Head vs. 252 HP / 28 Def Azumarill: 84-100 (40.5-48.3%)
252+ SpA Charizard Y Solar Beam vs. 252 HP / 164 SpD Azumarill: 174-206 (84-99.5%)
252+ SpA Choice Specs Latios Thunderbolt vs. 252 HP / 164 SpD Azumarill: 170-200 (82.1-96.6%)
252+ AtK Choice Band Landorus-T Earthquake vs. 252 HP / 28 Def Azumarill: 132-156 (63.7-75.3%)
- This calculation is based on a Doubles Field Setting.
+2 252+ SpA Aegislash-Blade Flash Cannon vs. 252 HP / 164 SpD Azumarill: 166-196 (80.1-94.6%)
-Weakness Policy
Good Counters: Venusaur and it`s Mega Form
Aegislash behind a Substitute (if you don`t run Waterfall)
Bug Bite Scizor
Mega Kangaskhan
Double-targetting with super-effective or very strong attacks.
Final Thoughts: I believe if you are going to use this spread, you should use a Choice Band due to the fact that if you don`t have a
Choice Band and you are using this spread it does not do that much damage to non-super effective targets like
Mega Kangaskhan, or you could run Belly Drum with Sitrus Berry.