Ferrothorn is my favorite Pokemon to use competitively. However, the set I use is just a little bit different...
Ferrothorn @ Rocky Helmet
Ability: Iron Barbs
EVs: 252 HP / 4 Atk / 252 Def
Relaxed Nature
IVs: 0 Spe
- Curse
- Gyro Ball
- Rest
- Sleep Talk
Just look at that. The power. I can't even. 252 Atk Landorus-T Earthquake vs. 252 HP / 252+ Def Ferrothorn: 106-126 (30.1 - 35.7%) -- 33.7% chance to 3HKO
(106, 108, 109, 109, 111, 112, 114, 115, 117, 117, 118, 120, 121, 123, 124, 126). 4 Atk Ferrothorn Gyro Ball (150 BP) vs. 0 HP / 0 Def Landorus-T: 169-199 (52.9 - 62.3%) -- guaranteed 2HKO
(169, 171, 172, 175, 177, 178, 181, 183, 184, 187, 189, 190, 193, 195, 196, 199). Curse boosts your defense. They're getting recoil from iron barbs + Rocky helmet helmet most of the time. Rest + sleep talk gives you infinite recovery. Curse also boosts the power of gyro ball twice, making the infamous "curseball" combo. And it's immune to toxic. And if it gets burned, rest nullifies it. And if it gets parahaxed, it's just boosting gyro ball even more. And it's immune to the most accurate sleep moves. Just... Just... Just brilliant. The typing, the ability, the stats, the moves... It all stacks on to create the ultimate physical wall.