Reflections of Littjara - The Lost Caverns of Ixalan Commander - 168

Enchantment

Mana Cost: {4}{U}

As this enchantment enters, choose a creature type.
Whenever you cast a spell of the chosen type, copy that spell. (A copy of a permanent spell becomes a token.)

Rare · The Lost Caverns of Ixalan Commander · #168 (LCC)

Illustrated by Aaron Miller