Chromatic Armor [Ice Age]

Set: Ice Age Type: Enchantment — Aura Rare Cost: {1}{W}{U} Enchant creature As Chromatic Armor enters the battlefield, choose a color. Chromatic Armor enters the battlefield with a sleight counter on it. Prevent all damage that would be dealt to enchanted creature by sources of the last chosen color. {X}: Put a sleight counter on Chromatic Armor and choose a color. X is the number of sleight counters on Chromatic Armor.