My Registeel is exactly the same as what Peterko uses on his 1414+ team...
Registeel @ Leftovers
Name: HardNess
Nature: Careful
EVs: 252 HP, 100 Attack, 140 Defense, 16 Sp. Defense
IVs: 31/31/31/x/30/31
Ability: Clear Body
- Iron Head
- Substitute
- Curse
- Amnesia
- As Peterko said, nothing breaks its Sub after +6/+6, except Choice Band Rhyperior, Sunny Day/Blaze boosted Fire moves, critical hits and OHKO moves.
Registeel @ Leftovers
Name: HardNess
Nature: Careful
EVs: 252 HP, 100 Attack, 140 Defense, 16 Sp. Defense
IVs: 31/31/31/x/30/31
Ability: Clear Body
- Iron Head
- Substitute
- Curse
- Amnesia
- As Peterko said, nothing breaks its Sub after +6/+6, except Choice Band Rhyperior, Sunny Day/Blaze boosted Fire moves, critical hits and OHKO moves.