This thing is insanely powerful if used properly.
Role: Special Sweeper
Mismagius @ Colbur Berry / Focus Sash
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Timid / Modest Nature
Timid Nature
- Shadow Ball
- Nasty Plot
- Dazzling Gleam / Hidden Power [Fighting]
- Thunderbolt / Energy Ball / Power Gem / Psychic
Shadow Ball is for the classic STAB, and to deal with Ghosts.
Nasty Plot is to deal more damage, and it will be even more dangerous with the Modest nature.
Hidden Power [Fighting] is for the Dark-types, but if you're breeding a shiny and you won't bother with Hidden Power, go with Dazzling Gleam. They're different moves, but both can still help you with that weakness.
The last four moves are for coverage, I prefer Thunderbolt, but it's totally up to you.
Role: Annoyer
Mismagius @ Spell Tag
Ability: Levitate
EVs: 230 HP / 252 Def / 26 SpD
Bold / Calm Nature
- Will-O-Wisp / Thunder Wave / Toxic
- Hex
- Pain Split
- Spite
Will-O-Wisp, Thunder Wave, and Toxic are to mess with the opponent, as well as doubling Hex's power.
Hex deals insane damage if you used one of the first moves above successfully, especially with Spell Tag and STAB, which will hit the opponent like a train.
Pain Split heals and deals damage.
Spite is to annoy the opponent more, especially if the moves they use have around 10 - 5 PP.