Waka-Laka

Shaman Oh Man

Set
Moves: Life Drain, Flabbergast, Rejuvenate/Synthesis, Muck Blast/Bane of Haste

Item: Power Cuffs

Ability: Expertise

Personality: Smart

TPs: 200 Ranged Attack, 200 Defense, 76 Energy, 24 HP

Reasons
Life Drain and Flabbergast are simple STAB moves that are both really nice to have. Rejuvenate and Synthesis are really the same thing, so it doesn't matter. Muck Blast can be extra coverage, but Bane of Haste can speed you and your slow teammates up.

Expertise is pretty much the only ability you can use, and it removes the effect of Power Cuffs, allowing exactly 4 Life Drains.

Power Cuffs, along with Expertise, makes for some strong powered moves.