Oath of Teferi [Dominaria Prerelease Promos] Astral Pack 8 If this card attacks a

If this card attacks a face-down Defense position monster

and nor can I

Shivan Dragon

Out of the blackness and stench of the engulfing swamp emerged a shimmering figure

1 "Cyber Dragon" monster or LIGHT Machine monster that cannot be Normal Summoned/Set

Oath of Teferi [Dominaria Prerelease Promos] Astral Pack 8 If this card attacks aSet: Dominaria Prerelease Promos Type: Legendary Enchantment Rarity: Rare Cost: {3}{W}{U} When Oath of Teferi enters the battlefield, exile another target permanent you control. Return it to the battlefield under its owner's control at the beginning of the next end step. You may activate the loyalty abilities of planeswalkers you control twice each turn rather than only once. "For the lost and forgotten, I will keep watch."