Professor Onyx (Strixhaven: School of Mages) [Borderless]

Set: Strixhaven: School of Mages
Collector Number: 276
Rarity: mythic

Mana Cost: {4}{B}{B}
Card Types: Legendary Planeswalker — Liliana
Card Text: Magecraft — Whenever you cast or copy an instant or sorcery spell, each opponent loses 2 life and you gain 2 life. +1: You lose 1 life. Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard. −3: Each opponent sacrifices a creature with the greatest power among creatures that player controls. −8: Each opponent may discard a card. If they don't, they lose 3 life. Repeat this process six more times.