mtg oath cards of the Gatewatch exile another target permanent you control Oath of Oak (Blue) [SGL-FAB-PEN-221-ENN]

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Usually you wont need that, but you can also use it to draw cards, if you already have access to plenty of mana

Theres a reason this graces the command zone of cEDH decks

As Jake notes, Players cant realistically use a lot of their expensive Standard cards in other formats because their power level fades compared to many cards from supplemental sets