Olivia, Mobilized for War (MR) – MtG Shadows Over Innistrad – Wizards of the Coast from Wizards of the Coast

Description

Olivia, Mobilized for War 1BlackRed
Legendary Creature — Vampire Knight (3/3)
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.