Give those poor alchemists a bit of an economic boost. MP Potions could help stimulate the market, and doubling the amount of potions one can use would shut up everyone complaining they want buff barrels again. It also doesn't diminish the value of standard potions, since they're still going to be 1 charge and completely viable. Plus, since MP only has a 2% craft rate, it'll actually make sense for people who craft pots to start saving the ones they do make MP. Right now, potion quality has 0 impact on effectiveness, and this would change that.

Problem is it should be of higher craft level, otherwise its too ez to make MP

MP = master piece? chance of 2% to craft one is ez?