Strixhaven: School of Mages

Square Up | Instant | | Target creature has base power and toughness 4/4 until end of turn. | Manuel Castañón

Eureka Moment | Instant | | Draw two cards. You may put a land card from your hand onto the battlefield. | Anna Steinbauer

Decisive Denial | Instant | | Choose one — • Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.) • Counter target noncreature spell unless its controller pays {3}. | Lorenzo Mastroianni

Quandrix Command | Instant | | Choose two — • Return target creature or planeswalker to its owner's hand. • Counter target artifact or enchantment spell. • Put two +1/+1 counters on target creature. • Target player shuffles up to three target cards from their graveyard into their library. | Viktor Titov

Double Major | Instant | | Copy target creature spell you control, except it isn't legendary if the spell is legendary. (A copy of a creature spell becomes a token.) | Suzanne Helmigh

Mortality Spear | Instant | | This spell costs {2} less to cast if you gained life this turn. Destroy target nonland permanent. | PINDURSKI

Infuse with Vitality | Instant | | Until end of turn, target creature gains deathtouch and "When this creature dies, return it to the battlefield tapped under its owner's control." You gain 2 life. | Andrey Kuzinskiy

Rushed Rebirth | Instant | | Choose target creature. When that creature dies this turn, search your library for a creature card with lesser mana value, put it onto the battlefield tapped, then shuffle. | Jason Kang

Tend the Pests | Instant | | As an additional cost to cast this spell, sacrifice a creature. Create X 1/1 black and green Pest creature tokens with "When this creature dies, you gain 1 life," where X is the sacrificed creature's power. | David Auden Nash

Harness Infinity | Instant | | Exchange your hand and graveyard. Exile Harness Infinity. | Seb McKinnon