Unleash the destruction...
Ability: Iron Fist/Sheer Force
EVs: 252 HP, 252 Att, 4 SpD
Item: Life Orb
Even though Conkeldurr's Iron Fist ability isn't released yet, I though I put together a moveset which could take full advantage of it and also it's other ability Sheer Force now that move tutors have been released.
Drain Punch: Very helpful move on a bulky attacker like Conkeldurr, helps recover any health lost and does massive damage with the Iron Fist ability.
Ice Punch: Helps to deal with those ever common Dragon types, makes Gliscor, Dragonite and Landorus think twice about coming in. Both abilities give it a nice boost in power.
Fire Punch: Helps to deal with the likes of Skarmory, Jirachi and other Steel types that are hit neutrally by Drain Punch. Skarmory in particular plays a dangerous game in when to use Roost or not. Once again a nice boost in power by both abilities.
Thunder Punch/Payback/Stone Edge/Rock Slide: Thunder Punch is great with dealing with bulky Water types such as Jellicent and Gyarados and get a power boost by both abilities. Payback is for if you don't won't to struggle against Ghost types, however it won't be doing much to bulky Ghost types like a Bulk Up set abusing Guts. Stone Edge is there if you got options dealing with Ghost types and bulky Water types. Same with Rock Slide but it gets a power boost from Sheer Force and is more reliable than Stone Edge.