Olivia Voldaren [Innistrad] Bringer Whenever a card is put

Whenever a card is put into your graveyard from anywhere

Then those choices are revealed

Set: Commander Anthology Volume II Type: Instant Rarity: Uncommon Cost: {1}{G} Strive — This spell costs {1}{G} more to cast for each target beyond the first

If two or more creatures are tied for least power

Set: Gatecrash Type: Creature — Human Wizard Rarity: Uncommon Cost: {W}{B} {1}{W}{B}: Target creature gains lifelink until end of turn

Olivia Voldaren [Innistrad] Bringer Whenever a card is putSet: Innistrad Type: Legendary Creature Vampire Rarity: Mythic Cost: {2}{B}{R} Flying {1}{R}: Olivia Voldaren deals 1 damage to another target creature. That creature becomes a Vampire in addition to its other types. Put a +1 +1 counter on Olivia Voldaren. {3}{B}{B}: Gain control of target Vampire for as long as you control Olivia Voldaren.