Sorin's Vengeance [Magic 2012] Nightmare Bird where X is the number

where X is the number of cards in your graveyard that are instant cards

Set: Eldritch Moon Type: Creature — Eldrazi Horror Rarity: Uncommon Cost: {8} Emerge {5}{G}{U} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value

Such sacrilege turns blinding grief into blinding rage

Set: Commander Anthology Volume II Type: Enchantment Rarity: Uncommon Cost: {1}{G}{U} Whenever a creature you control with a +1/+1 counter on it deals combat damage to a player

Sorin's Vengeance [Magic 2012] Nightmare Bird where X is the numberSet: Magic 2012 Type: Sorcery Rarity: Rare Cost: {4}{B}{B}{B} Sorin's Vengeance deals 10 damage to target player or planeswalker and you gain 10 life. "Cherish these last moments. Though your miserable life has come to nothing, I have given it a magnificent end."