Okay then, you'll have to add my Pearl FC.
Don't Evolve, and make Roselia learn Toxic Spikes at level 28 if you get that high.
Don't unlearn Leaf Storm and Sleep Powder.
Don't unlearn Pain Split for Duskull.
Roselia: 252 Sp.A, 252 Spe, 4 HP
Duskull: 252 HP / 28 Atk / 228 Def
See you in there. Duskull is level 12, but I'm sure I wiped its EV's.
;)