Strixhaven: School of Mages

Flunk | Instant | | Target creature gets -X/-X until end of turn, where X is 7 minus the number of cards in that creature's controller's hand. | Randy Vargas

Plumb the Forbidden | Instant | | As an additional cost to cast this spell, you may sacrifice one or more creatures. When you do, copy this spell for each creature sacrificed this way. You draw a card and you lose 1 life. | Andrey Kuzinskiy

Silverquill Apprentice | Creature | Human Warlock | Magecraft — Whenever you cast or copy an instant or sorcery spell, target creature gets +1/+0 until end of turn. | Mike Bierek

Humiliate | Sorcery | | Target opponent reveals their hand. You choose a nonland card from it. That player discards that card. Put a +1/+1 counter on a creature you control. | Randy Vargas

Killian, Ink Duelist | Legendary Creature | Human Warlock | Lifelink Menace (This creature can't be blocked except by two or more creatures.) Spells you cast that target a creature cost {2} less to cast. | Ryan Pancoast

Fracture | Instant | | Destroy target artifact, enchantment, or planeswalker. | Miranda Meeks

Dina, Soul Steeper | Legendary Creature | Dryad Druid | Whenever you gain life, each opponent loses 1 life. {1}, Sacrifice another creature: Dina, Soul Steeper gets +X/+0 until end of turn, where X is the sacrificed creature's power. | Chris Rahn

Witherbloom Apprentice | Creature | Human Druid | Magecraft — Whenever you cast or copy an instant or sorcery spell, each opponent loses 1 life and you gain 1 life. | Josh Hass

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

Deadly Brew | Sorcery | | Each player sacrifices a creature or planeswalker. If you sacrificed a permanent this way, you may return another permanent card from your graveyard to your hand. | Randy Vargas