The Covert Blue Mage

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If The Covert Blue Mage is your commander, your starting deck can contain any number of cards beyond the maximum deck size. (For example, your deck can be 120 cards.) When The Covert Blue Mage enters, create a colorless Equipment artifact token named Covert Sunglasses. It has "Equipped creature can't be blocked" and equip {2}{W/U}.