Some normally horrid abilities (for AAA standards) might start to become some defining forces over here and anything with Regenerator of their own will be a perfect host to many of them.
Slowbro @ Flame Body / Perish Body
Ability: Regenerator
EVs: 252 HP / 252 Def / 4 SpD
IVs: 0 Spe
Relaxed Nature
-
Scald / Ice Beam
- Slack Off
- Future Sight
- Teleport
Have you ever found yourself wanting to burn that physical attacker, escaping your Scald escapades? Just slap Flame Body on it. Regenerator is all about playing the long game and you'll soon find the 30% Burn chance to become a 100% Burn chance against that one problematic Pivot.
Perish Body works a bit differently and combining it with Teleport puts the opponent's sweeper/breaker/w/e on a timer, doubling as a semi Roar. Maybe start spamming Bolt Beaks or Fishious Rends on the inevitable switch-in?
I personally prefer Flame Body over it, because of the existence of U-Turn, making Perish Body more of a double-edged sword than an asset at times.
Excadrill @ Regenerator
Ability: Mold Breaker
EVs: 4 Atk / 252 SpD / 252 Spe
Jolly Nature
- Earthquake
- Iron Head
- Stealth Rock
- Toxic / Rapid Spin
MB isn't an unpopular ability by any means and Excadrill is probably the one mon being able to abuse it to it's fullest extend. It voids the Levitators and Magic Bouncers, has a good defensive typing and has a quadruple resist and immunity on two popular hazards if you opt to go for Rapid Spin. Add Regenerator to the mix and you'll have a niche other rockers only dream to fulfill.
Although it might falter to weather, which might become an offensive staple. I prefer it over Swampert, thanks to Mold Breaker and the latter's Flip Turn not helping it against Desolate Land
and Flame Body. However, will SR even be worth it, with all mons weak to it probably running Magic Guard?
About that:
Zapdos @ Magic Guard
Ability: Static
EVs: 248 HP / 220 Def / 40 Spe
Timid Nature
- Discharge / Volt Switch
- Hurricane / U-Turn
- Roost
- Defog
Just the OU cookie cutter set without it's glaring weaknesses to Toxic and Stealth Rock. It's biggest pro is it being immune to Paralyze, which is one of the few things being able to ruin MG mons. Probably a good answer to Aerilate Spam as well.