Originally Posted by Fat Queen of Randoms
I've actually never used kyu-b since suspect testing. That set sounds interesting; what EVs/nature are you running?
The Sub set usually has 56 HP EVs and 236 Spe EVs to outspeed max Speed Mamo and make 101 HP Subs. The you can put the remaining EVs in whichever offensive stat you want. The moveset of the sub set consists of Sub, Fusion Bolt, and Ice Beam. In the last slot more people use Earth Power, but HP Fire and Focus Blast are very good coverage moves as well. You can also use Dragon Claw in the last slot, and put the leftovers EVs in Atk to make it hit as hard as possible, but the coverage moves for Steel types are usually better. Leftovers is the best item, but if you find its power lacking, Life Orb and Expert Belt are good options too.