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Rock Head can push T-Rex to at least UU, might go BL but there's a few of stops to it in UU.
and there's this
>+1 252 Atk Life Orb Tyrantrum Earthquake vs. 252 HP / 252+ Def Aggron: 380-452 (110.4 - 131.3%) -- guaranteed OHKO
>+1 252 Atk Life Orb Tyrantrum Head Smash vs. 192 HP / 252+ Def Vaporeon: 446-526 (99.3 - 117.1%) -- 93.8% chance to OHKO
Hippowdon still wrecks it, EQ kills after the Life Orb recoil
It may want to be Jolly with Crobat and Noivern everywhere
UU is also Choice Scarf: the tier, featuring Nidoking, Infernape, Mienshao and Flygon
Scrafty 1v1's it
Jirachi needs 1 flinch
Sharpedo checks it hard
Standard Machamp tanks the Head Smash and kills with D Punch
But it's still very frail on the special side, a cold sneeze could kill it.
