Clothier's Boon

Enchant land
Whenever enchanted land is tapped for mana, add one mana of any color that an opponent is wearing. (Colored seams, buttons, patterns, and stains count towards the colors that are being worn. If an opponent is wearing colors other than white, blue, black, red, green, or grey, the mana produced is up to the players' discretion.)
Tie-dye will be your doom!