Okay, I discovered one of my favorite sets during this month of Inheritance so I present to you stallbreaker Nihilego

Nihilego @ Black Sludge
Ability: Neutralizing Gas
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
IVs: 0 Atk
- Will-O-Wisp
- Substitute
- Infestation
- Taunt
The basic game plan is to trap your opponent and burn them, prevent them from healing with Taunt while keeping a Sub up as often as you can to block status and other moves. Neutralizing Gas is a fantastic ability that allows to you shut down abilities that would usually counter this set such as Magic Bounce, Magic Guard, Prankster, and Flash Fire. It also prevents Regenerator mons from healing when they switch out, letting you handle teams that rely on Regenerator spam.
Nihilego is pretty much the best inheritor for this set due to several factors:
- Subs with over 100 HP that can't be broken by one Seismic Toss/Night Shade
- Immunity to Poison and Sandstorm. Not even Corrosion works because of Neutralizing Gas
- Resistance to U-Turn and high enough special bulk to tank Volt Switch should they try to escape (Flip Turn is a different story)
- Fast enough to outspeed most walls in the game
Its Defense is its main weakness but max investment and Burn can help soften physical attacks. There are also multiple teammates that can help this set succeed.
- Water, Psychic, Steel, and Ground resists to take care of its weaknesses.
- Slow pivots - you don't want Nihilego to take any damage if you can help it since it has no healing outside of Black Sludge.
- Hazard control/removal - again, the less damage Nihilego takes, the better. Toxic Spikes in a nonissue for obvious reasons.
- Knock Off - removing the opponents' Leftovers helps to wear them done even faster while removing Rocky Helmets is pretty important since Infestation is a contact move.
- Sandstream can boost Nihilego's Special Defense and add additional chip damage.
Here's a replay against a stall team (pre Unaware and Xatu ban). It's a long game, but you can see this set putting in work wearing the opposing Pokemon down.
https://replay.pokemonshowdown.com/gen8inheritance-1278420294
Here's the newest version of the team that actually reached #1 on the ladder:
https://pokepast.es/d03604eb6bdb85df

Nihilego @ Black Sludge
Ability: Neutralizing Gas
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
IVs: 0 Atk
- Will-O-Wisp
- Substitute
- Infestation
- Taunt
The basic game plan is to trap your opponent and burn them, prevent them from healing with Taunt while keeping a Sub up as often as you can to block status and other moves. Neutralizing Gas is a fantastic ability that allows to you shut down abilities that would usually counter this set such as Magic Bounce, Magic Guard, Prankster, and Flash Fire. It also prevents Regenerator mons from healing when they switch out, letting you handle teams that rely on Regenerator spam.
Nihilego is pretty much the best inheritor for this set due to several factors:
- Subs with over 100 HP that can't be broken by one Seismic Toss/Night Shade
- Immunity to Poison and Sandstorm. Not even Corrosion works because of Neutralizing Gas
- Resistance to U-Turn and high enough special bulk to tank Volt Switch should they try to escape (Flip Turn is a different story)
- Fast enough to outspeed most walls in the game
Its Defense is its main weakness but max investment and Burn can help soften physical attacks. There are also multiple teammates that can help this set succeed.
- Water, Psychic, Steel, and Ground resists to take care of its weaknesses.
- Slow pivots - you don't want Nihilego to take any damage if you can help it since it has no healing outside of Black Sludge.
- Hazard control/removal - again, the less damage Nihilego takes, the better. Toxic Spikes in a nonissue for obvious reasons.
- Knock Off - removing the opponents' Leftovers helps to wear them done even faster while removing Rocky Helmets is pretty important since Infestation is a contact move.
- Sandstream can boost Nihilego's Special Defense and add additional chip damage.
Here's a replay against a stall team (pre Unaware and Xatu ban). It's a long game, but you can see this set putting in work wearing the opposing Pokemon down.
https://replay.pokemonshowdown.com/gen8inheritance-1278420294
Here's the newest version of the team that actually reached #1 on the ladder:
https://pokepast.es/d03604eb6bdb85df