Sigarda, Host of Herons (Oversized) [Open the Helvault] Phyrexian Demon each opponent's life total becomes

each opponent's life total becomes the lowest life total among your opponents

but how could that be

Set: Rise of the Eldrazi Type: Creature — Eldrazi Rarity: Rare Cost: {10} Annihilator 1 (Whenever this creature attacks

Set: Weatherlight Type: Instant Rarity: Rare Cost: {R} As an additional cost to cast this spell

Sigarda, Host of Herons (Oversized) [Open the Helvault] Phyrexian Demon each opponent's life total becomesSet: Open the Helvault Type: Legendary Creature Angel Rarity: Mythic Cost: {2}{G}{W}{W} Flying, hexproof Spells and abilities your opponents control can't cause you to sacrifice permanents. Great devotion yields great reward.