i think it works pretty dandilly, i don't know about 2 of them, but no weakness, shuts down fire truk t2 consistantly, it's only shortcomings really come into play in the gallade matchup, where you will be one shotted, for two prizes, but since you have it with gallade anyway, you would probably not have that hard of a time pulling of a couple of prizes, your stage 2s are going to get hard to one hit after taking 2 prizes,
as a matter of fact i've heard people talking about cresselia x and gallade, so they can take 2 prizes anyway, a good player can survive losing an extra prize, and if they can't it's going to be a rude awakening when cresselia takes 2 prizes from any pokemon,