Landorus-Therian (M) @ Groundium Z
Ability: Intimidate
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Substitute
- Knock Off
- Earthquake
- Smack Down
This is what I use to beat Stall in addition to Safeguard support from Ninetales. Knock Off is nice for Steela, Sub for Leech Seeds and pivots. Groundium Z with Smackdown lacks immunities but you cannot hit Grass or Bugtypes hard. They all fear Z-Fly so you can always Sub against them :)
Could not find the Stallreplay
http://replay.pokemonshowdown.com/gen7ou-626144558