Never ever use Rock Head. Always use Magic Guard, as it does the exact same thing but with hazards and status.
Also try using a Lum Berry in the last slot, because The scarf isn't useful at all.
No need to use Lum Berry when you have Toxic Orb.
If any of you are Unaware that Mold Breaker is supposed to ignore Unaware, (I actually meant to say Unaware twice) you'll be depressed to know that it's been fixed (or happy if you hate balance and stall) Mold Breaker sweepers will now dominate the metagame, having basically no counters except dedicated ones, the bad part is that because of BH's random nature, creating a dedicated counter to them reliably is impossible.
1. They cannot be stopped by Imposter with Judgment and a held plate.
2. They can ignore Magic Bounce, so they will be able to spore threats with ease, set up hazards, and create pressure through the combination of offense and status moves.
3. Because of this, Unaware Pokemon will likely be less common, and if that happens, offense will dominate the metagame. You'll see lots of sets such as Choice Scarf Contrary Kyurem-W and Poison Heal Sweepers.
Since the metagame is going to revolve around offense rather than stall, stalls only hope is to use Prankster Heartswappers/Destiny Bonders/Sporers and whatnot. Imposters will run rampant and Offensive Poison Heal will truly dominate the meta. It's probably that with this fix, Magic Bounce will not be severely hindered with Mold Breaker everywhere. With the rise of Contrary, Unaware sweepers such as Kyogre will be used against them with Quiver Dance and other boosting moves. As for support moves, Safeguard, Magic Coat, Hazards, Taunt, Rapid Spin, and Heal Bell will be used often, the newest addition being Safegard because status will be even more common with Mold Breaker everywhere.
Me and Keep it Playful were discussing about a possible counter to a Mold Breaker sweeper, the conclusion was that it's almost impossible to break and unhealthy for the metagame.
Moldy shouldn't have been fixed!! (Ferrothorn) (M) @ Leftovers/Mental Herb
Trait: Prankster
EVs: 252 HP / 252 Atk / 252 Def / 252 SAtk / 252 SDef / 252 Spd
Sassy Nature
- Substitute
- Taunt/Magic Coat
- Destiny Bond
- Baton Pass
With this set, you can stop a Mold Breaker sweeper from ripping your team apart, Mental Herb allows you to stop Taunts whereas Leftovers can greatly aid in supporting your team with sub-passes. The choice between Taunt and Magic Coat is debatable, Magic Coat works well because you can bounce back Spores/Taunts/Hazards instead of preventing them, Taunt only prevents them from using Spores/Taunts/Hazards but will stop them from using it for 3 turns.
In my opinion (and a lot of other BH players), Mold Breaker should either not ignore Unaware or become banned.