Ayara, First of Locthwain (Extended Art) [Throne of Eldraine] Explorers of Ixalan You lose life equal to

You lose life equal to that spell's converted mana cost

Set: Classic Sixth Edition Type: Sorcery Rare Cost: {2}{W}{W} Destroy all creatures

"Where moments before we were lost beyond hope

Set: Amonkhet Invocations Type: Creature — Avatar Mythic Cost: {6}{B}{B} If there are ten or more creature cards total in all graveyards

but it is predictable

Ayara, First of Locthwain (Extended Art) [Throne of Eldraine] Explorers of Ixalan You lose life equal toSet: Throne of Eldraine Type: Legendary Creature Elf Noble Rarity: Rare Cost: {B}{B}{B} Whenever Ayara, First of Locthwain or another black creature enters the battlefield under your control, each opponent loses 1 life and you gain 1 life. {T}, Sacrifice another black creature: Draw a card.