Cloak of Confusion - Ice Age - 117

Enchantment — Aura

Mana Cost: {1}{B}

Enchant creature you control
Whenever enchanted creature attacks and isn't blocked, you may have it assign no combat damage this turn. If you do, defending player discards a card at random.

Common · Ice Age · #117 (ICE)

Illustrated by Margaret Organ-Kean