Welcome to PokéCommunity! Register now and join one of the best fan communities on the 'net to talk Pokémon and more! We are not affiliated with The Pokémon Company or Nintendo.
Well, that's what I usually do. Not by several levels though, I like to keep them all around the same, but generally my starter is a couple levels higher than the rest.
Master Ball maybe? I honestly can't remember. I know in my Japanese Platinum I used the Master Ball, but I might have used an Ultra Ball or Dusk Ball in my English one.
I play the CoD games, and I've beaten Killzone 2. I've also beaten the first playthrough of Borderlands, which is extremely fun. Other than that though I haven't played many.