Ominous Lockbox (Alchemy: Murders at Karlov Manor  #8)

Ominous Lockbox {1}{U}

Artifact — Clue

As Ominous Lockbox enters, secretly choose a number between 1 and 20.

When an opponent casts a spell with mana value equal to the chosen number, sacrifice Ominous Lockbox. If you do, copy that spell, and you may choose new targets for the copy.

{2}, Sacrifice Ominous Lockbox: Draw a card.

Illustrated by Nicholas Gregory

Standard
Alchemy
Pioneer
Explorer
Modern
Historic
Legacy
Brawl
Vintage
Timeless
Commander
Pauper
Oathbreaker
Penny