The Key to the Vault

Description

The Key to the Vault (OTJ 373, foil) is a legendary Artifact — Equipment from Outlaws of Thunder Junction. Whenever the equipped creature deals combat damage to a player, you may exile that many top cards of your library and cast a nonland card exiled this way without paying its mana cost. It equips for {2}{U}, making it a blue-focused value engine for decks that can reliably deal combat damage with creatures.