What do you mean by EV stats? If you mean the EVs to give to it, then I can help.
Roselia@Choice Specs
Modest Nature
252 EVs Sp. Atk, 252 EVs Spd and 6 HP
-Energy Ball/Leaf Storm
-Sludge Bomb
-Extrasensory
-Shadow Ball/HP Fire/Fight
First two moves are for STAB.
Extrasensory hits other Poisions.
Shadow Ball hits Psychics while HP Fighting and Fire hit Steels.