ok so i made some changes to my team, keeping only weezing unchanged.
Mesprit switched out to:
Drifblim
Nature:Mild(+sp.atk, -def)
Ability:Unburden
Item:Focus sash
EVs: 168 atk, 252 sp. atk, 88 spe
IVs:HP/Def/SP.Def=2, Atk=31,SP.Atk/Spe=30
Moveset:
explosion, Hypnosis, Shadow Ball, Hidden...