Congrats man , The Suggestions gave by Hack , Arii stella and Californium are nice and I loved it. So my Suggestion is Changing your WaterCeus to RockCeus.
Arceus-Rock @ Stone Plate , Ability: Multitype , EVs: 236 HP / 20 SAtk / 252 Spd , Timid Nature , Moves : - Calm Mind - Judgment -...