Niv-Mizzet, Guildpact (Serialized) [Murders at Karlov Manor] Phyrexian Horror investigate for each opponent who

investigate for each opponent who lost life this turn

it deals X damage to any target

Set: Secret Lair Drop Series Type: Sorcery Rarity: Rare Cost: {B}{B}{B} Search your library and graveyard for five cards and exile the rest

What I wouldn't give to tackle an equation like that

Set: Secret Lair: From Cute to Brute Type: Legendary Creature — Elder Dragon Rarity: Mythic Cost: {1}{U}{B}{R} Flying

Niv-Mizzet, Guildpact (Serialized) [Murders at Karlov Manor] Phyrexian Horror investigate for each opponent whoSet: Murders at Karlov Manor Type: Legendary Creature Dragon Avatar Rarity: Rare Cost: {W}{U}{B}{R}{G} Flying, hexproof from multicolored Whenever Niv Mizzet, Guildpact deals combat damage to a player, it deals X damage to any target, target plater draws X cards, and you gain X life, where X is the number of different color pairs among permanents you control that are exactly two colors.