Strixhaven: School of Mages

Devastating Mastery | Sorcery | | You may pay {2}{W}{W} rather than pay this spell's mana cost. If the {2}{W}{W} cost was paid, an opponent chooses up to two nonland permanents they control and returns them to their owner's hand. Destroy all nonland permanents. | Jake Murray

Snow Day | Instant | | Tap up to two target creatures. Those creatures don't untap during their controller's next untap step. Draw two cards, then discard a card. | Forrest Imel

Professor Onyx | Legendary Planeswalker | Liliana | 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. | Kieran Yanner

Leyline Invocation | Sorcery | | Create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it, where X is the number of lands you control. | Liiga Smilshkalne

Verdant Mastery | Sorcery | | You may pay {3}{G} rather than pay this spell's mana cost. Search your library for up to four basic land cards and reveal them. Put one of them onto the battlefield tapped under an opponent's control if the {3}{G} cost was paid. Put two of them onto the battlefield tapped under your control and the rest into your hand. Then shuffle. | Cristi Balanescu

Rise of Extus | Sorcery | | Exile target creature. Exile up to one target instant or sorcery card from a graveyard. Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.) | Wylie Beckert

Returned Pastcaller | Creature | Spirit Cleric | Flying When Returned Pastcaller enters the battlefield, return target Spirit, instant, or sorcery card from your graveyard to your hand. | Grzegorz Rutkowski

Body of Research | Sorcery | | Create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it, where X is the number of cards in your library. | Antonio José Manzanedo

Cogwork Archivist | Artifact Creature | Construct | Reach {2}, {T}: Put target card from a graveyard on the bottom of its owner's library. | Joseph Meehan