Feraligatr @ Life Orb  
Ability: Sheer Force  
EVs: 36 HP / 252 Atk / 220 Spe  
Jolly Nature  
- Dragon Dance  
- Liquidation  
- Ice Punch  
- Crunch

Role
Setup sweeper. The Physical Nidoking! 

Set
Jolly is preferred over Adamant because it can't outspeed koko after a dragon dance with adamant unfortunately. Max attack for obvious reasons. The 220 speed guarantees outspeeding Koko and lopunny-Mega at +1 while also outspeeding Modest Nidoking without boosts, if people decide to use it. The rest in HP to live hits just a little bit better. Liquidation, Ice Punch and Crunch all get a sheer force boost and provide excellent coverage vs most of the tier, including Ubers (Mewtwo, Lugia, Ho-oh, Giratina and Yveltal for example).

Calcs (Offensive, inherited 130 Attack)
+1 252 Atk Life Orb Sheer Force Feraligatr Crunch vs. 252 HP / 160+ Def Lugia: 283-335 (68 - 80.5%) -- 43.8% chance to OHKO after Stealth Rock and Leftovers recovery
252 Atk Life Orb Sheer Force Feraligatr Liquidation vs. 252 HP / 204+ Def Ho-Oh: 382-452 (91.8 - 108.6%) -- 50% chance to OHKO after Leftovers recovery
+1 252 Atk Life Orb Sheer Force Feraligatr Liquidation vs. 4 HP / 0 Def Tapu Koko: 406-477 (143.9 - 169.1%) -- guaranteed OHKO
+1 252 Atk Life Orb Sheer Force Feraligatr Liquidation vs. 0 HP / 4 Def Mewtwo-Mega-X: 352-415 (99.7 - 117.5%) -- 93.8% chance to OHKO
+1 252 Atk Life Orb Sheer Force Feraligatr Ice Punch vs. 0 HP / 4 Def Yveltal: 434-512 (110.4 - 130.2%) -- guaranteed OHKO
+1 252 Atk Life Orb Sheer Force Feraligatr Liquidation vs. 252 HP / 168+ Def Shuckle: 283-335 (56.1 - 66.4%) -- guaranteed 2HKO (inherited 150 HP)
-1 252 Atk Life Orb Sheer Force Feraligatr Ice Punch vs. 252 HP / 68 Def Landorus-Therian: 380-447 (75.3 - 88.6%) -- guaranteed 2HKO (inherited 150 HP)