Diancie @ Diancite
Ability: Clear Body
EVs: 252 SpA / 4 SpD / 252 Spe
Hasty Nature
- Stealth Rock
- Moonblast
- Diamond Storm
- Earth Power
This pink precious-stoned princess is the paragon of a wallbreaker that
checks the core of Mega-Latias + LO clefable.
Her good speed threatens potential z-users like z-kart, z-chomp, or z-blace, if the core is used on a balance/BO build.
If she gets in freely vs them, Moonblast 2hko clef, while 75% chance to 2hko +1 spDef mega-lat (provided she wins the speed tie).
Moonblast's 30% chance to drop spAtk would away their offensive power, as well as lowering stored power's BP.
Magic Bounce is not helpful vs their sets, though it'd be a boon if clef decided to run t-wave. And obviously Bounce can help prevent hazards and keep Diancie's teammates away from KO ranges of the core's sets.
Mega-Diancie is a good SR-setter since she pressures common defoggers that would join the core including torn, zap, rotom-w, and defensive lando. SR would of course assist her teammates in wearing down mega-lat.
Diamond Storm not only threatens torn+zap but helps significantly break down chansey, which may be found with the core to answer things like 'rona, protect+SR tran, and the zam set above.
Lastly, Earth Power and its drop chance can chunk out the HPs of:
- pex (which provides gren switchin and tspikes),
- rachi, mage (which checks psyspam for this core) and
- spdef tran (which when healthy is a second check to offensive tran after mega lat)
The downsides of her are many, including her common type weaknesses, her 4mss and hp-fire the only way to threaten ferro, susceptibility to priority, and just overall fragility.
Still I find this Ms. Bling to be an interesting choice that offensively checks/pressures this core and its common teammates.
P.S. I've been mostly a lurker over these years and this is part of my attempt to hopefully contribute more than I've done in the past