Whats the item called that, once given to your pokemon, levels them up without actually going into battle? (p.s. I know about the day care ceneter..oh and I have platinum)
A Rare candy. They can be bought for 36 BP at the battle Froteir.
Rare Candy or Exp.Share.Rare Candies are found in lots of places but I know they can be bought for 48 Battle Points at the Battle Frontier.Exp.Share,I can't remember,I have already finished Platinum and it was ages since I found it.
A Rare Candy no less.
Battle subway (48 BP)
Can be found by Dowsing MCHN in places such as Desert Resort B/W