Case of the Shifting Visage [Murders at Karlov Manor Commander]

Set: Murders at Karlov Manor Commander Type: Enchantment — Case Rarity: Rare Cost: {1}{U}{U} At the beginning of your upkeep, surveil 1.To solve — There are fifteen or more cards in your graveyard. (If unsolved, solve at the beginning of your end step.)Solved — Whenever you cast a nonlegendary creature spell, copy that spell. (The copy becomes a token.)