Well, TTar itself is a bt of a problem, along with the common sandstorm pokes. I've devised this set though, to replace Dnite:
Infernape (M) @ Choice Scarf
Trait: Blaze
EVs: 200 Atk / 104 SAtk / 204 Spd
Naive Nature (+Spd, -SDef)
- Close Combat
- Stone Edge
- Hidden Power [Ice]
- U-turn
It outspeeds and OHKOs Scarf Landorus with HP Ice after SR. If it's a Naive Landorus, it will always OHKO. It also KOs TTar with CC as well as doing damage to lots of the other common sandstorm pokes. I've added Stone Edge because I was having some trouble with Volcarona too. I was considering Max Speed to tie with Scarf Terrakion, but a tie is too risky imo and would leave little room for investing in Attack