Olivia, Mobilized for War [Shadows over Innistrad Prerelease Promos] Sliver Mutant Since the war began

Since the war began

Set: From the Vault: Transform Type: Creature — Vampire Rarity: Mythic Cost: {2}{B}{B} Flying

Set: Modern Masters 2015 Type: Legendary Creature — Eldrazi Rarity: Mythic Cost: {15} This spell can't be countered

see rule 704

return it to the battlefield under your control at the beginning of the next end step

Olivia, Mobilized for War [Shadows over Innistrad Prerelease Promos] Sliver Mutant Since the war beganSet: Shadows over Innistrad Prerelease Promos Type: Legendary Creature Vampire Knight Rarity: Mythic Cost: {1}{B}{R} Flying Whenever another creature enters the battlefield under your control, you may discard a card. If you do, put a +1 +1 counter on that creature, it gains haste until end of turn, and it becomes a Vampire in addition to its other types.