Tapu Lele@Choice Scarf
Nature: Modest
Ability: Psychic Surge
EVs: 6 Def/252 Sp.Att/252 Speed
(EVs set until calcs are done.)
Moonblast/Psyshock (Psychic)/Focus Blast/Energy Ball (Shadow Ball, HP Fire)
Okay so first off, the synergy I mentioned briefly; Tapu Lele has two weaknesses needing addressing in particular for this: Ghost and Steel. Both have a priority attack: Bullet Punch and Shadow Sneak, both in which could revenge kill Tapu Lele... That is, unless Psychic Terrain is up. With PTerra, Tapu Lele is immune to priority attacks- meaning revenge-killing it is more difficult then normal. It auto places PTerra.
You get the point.
The moveset covers a wide variety of targets. The first two moves are for useful STABs. Focus Blast basically tells Bisharp to go **** off (I would honestly gamble for HP Fighting for accuracy but the attack is too weak).
My choice between Shadow Ball vs Energy Ball came down to my instinctive fear of Quagsire, who has always **** on my teams in the past. Its mostly a personal preference. Ghost hits other Ghosts and Psychic users, while Grass hits Ground, Water, and Rock. The most intimidating Ghosts around are also weak to either Fairy or Psychic (Mega Sableye and Gengar). So its not like I'm missing much. It also gets Thunderbolt, so it can also hit birds if needed. HP Fire is also a good option so it doesn't get blocked by Scizor.