What about a lead set? I don't see our T-Rex friend being OU but i could see him in lower tiers.
Tyrantrum @ Focus Sash/Leftovers
EVs: 252 HP / 252 Atk / 4 Def
Adamant Nature
- Stealth Rock
- Head Smash
- Dragon Claw/Dragon Tail
- Earthquake/Crunch
Not sure about the EVs or what moves should...