So after a bit of tampering with the TR lead set;
Desukan @ Leftovers
Trait: Mummy
EVs: 252 HP / 140 Def / 88 SAtk
IVs: 31 HP / 31 Atk / 30 Def / 30 Sp.Atk / 30 Sp.Def / 2 Spe (HP Fighting 70)
Quiet Nature (+Sp.Atk, -Spe) / Relaxed Nature (+Sp.Atk, -Spe)
- Trick Room
- Nasty Plot
- Shadow Ball
- Hidden Power [Fighting]
This is what I consider to be the "base" for the spread. The EVs are the minimal require to beat things like Metagross, Kojondo and other leads you don't really want something like Porygon 2 to go up against (Whom I might add makes an amazing partner for this set; forming a sort of TR "Lead Core"). You've got 28 spare EVs to invest anywhere and then you can pick your nature on top of that, either to be more offensive or more defensive (Quiet or Relaxed respectively). The 88 Sp.Atk EVs ensure the 2HKO on standard Kojondo before NP with a neutral nature, and if you go with a Quiet nature you can 2HKO physically defensive Hippowdon at +2. I'm too lazy to run the calcs to see where the extra 28 EVs would really matter.
You could alternatively go with Sassy and put the left over 28 EVs into Sp.Def so that you can ensure that Lead Infernape can't 2HKO with Fire Blast (Assuming Focus Sash) which allows you to beat it one on one should it go for SR first turn, although Desukaan won't be in terribly good shape afterwards so you're generally better off just leading with something like Rankurusu or Latios against 'nape. The Special bulk might come in handy on occasion mind you, but the loss in power isn't really worth it in my opinion.
Desukan @ Leftovers
Trait: Mummy
EVs: 252 HP / 140 Def / 88 SAtk
IVs: 31 HP / 31 Atk / 30 Def / 30 Sp.Atk / 30 Sp.Def / 2 Spe (HP Fighting 70)
Quiet Nature (+Sp.Atk, -Spe) / Relaxed Nature (+Sp.Atk, -Spe)
- Trick Room
- Nasty Plot
- Shadow Ball
- Hidden Power [Fighting]
This is what I consider to be the "base" for the spread. The EVs are the minimal require to beat things like Metagross, Kojondo and other leads you don't really want something like Porygon 2 to go up against (Whom I might add makes an amazing partner for this set; forming a sort of TR "Lead Core"). You've got 28 spare EVs to invest anywhere and then you can pick your nature on top of that, either to be more offensive or more defensive (Quiet or Relaxed respectively). The 88 Sp.Atk EVs ensure the 2HKO on standard Kojondo before NP with a neutral nature, and if you go with a Quiet nature you can 2HKO physically defensive Hippowdon at +2. I'm too lazy to run the calcs to see where the extra 28 EVs would really matter.
You could alternatively go with Sassy and put the left over 28 EVs into Sp.Def so that you can ensure that Lead Infernape can't 2HKO with Fire Blast (Assuming Focus Sash) which allows you to beat it one on one should it go for SR first turn, although Desukaan won't be in terribly good shape afterwards so you're generally better off just leading with something like Rankurusu or Latios against 'nape. The Special bulk might come in handy on occasion mind you, but the loss in power isn't really worth it in my opinion.