Gifts Ungiven [Modern Masters] Oath of the Gatewatch Prerelease Promos but you may put it

but you may put it on top of your library instead of into your graveyard

then sacrifices all creatures they control

The same is true for creature spells you control and creature cards you own that aren't on the battlefield

each player may return a blue card from their graveyard to their hand

Gifts Ungiven [Modern Masters] Oath of the Gatewatch Prerelease Promos but you may put itSet: Modern Masters Type: Instant Rarity: Rare Cost: {3}{U} Search your library for up to four cards with different names and reveal them. Target opponent chooses two of those cards. Put the chosen cards into your graveyard and the rest into your hand. Then shuffle.