Strixhaven: School of Mages

Leonin Lightscribe | Creature | Cat Cleric | Magecraft — Whenever you cast or copy an instant or sorcery spell, creatures you control get +1/+1 until end of turn. | Steven Belledin

Shaile, Dean of Radiance | Legendary Creature | Bird Cleric | Flying, vigilance {T}: Put a +1/+1 counter on each creature that entered the battlefield under your control this turn. | Yongjae Choi

Strict Proctor | Creature | Spirit Cleric | Flying Whenever a permanent entering the battlefield causes a triggered ability to trigger, counter that ability unless its controller pays {2}. | Jokubas Uogintas

Flamescroll Celebrant | Creature | Human Shaman | Whenever an opponent activates an ability that isn't a mana ability, Flamescroll Celebrant deals 1 damage to that player. {1}{R}: Flamescroll Celebrant gets +2/+0 until end of turn. | Uriah Voth

Plargg, Dean of Chaos | Legendary Creature | Orc Shaman | {T}, Discard a card: Draw a card. {4}{R}, {T}: Reveal cards from the top of your library until you reveal a nonlegendary, nonland card with mana value 3 or less. You may cast that card without paying its mana cost. Put all revealed cards not cast this way on the bottom of your library in a random order. | Bryan Sola

Conspiracy Theorist | Creature | Human Shaman | Whenever Conspiracy Theorist attacks, you may pay {1} and discard a card. If you do, draw a card. Whenever you discard one or more nonland cards, you may exile one of them from your graveyard. If you do, you may cast it this turn. | Svetlin Velinov

Dragonsguard Elite | Creature | Human Druid | Magecraft — Whenever you cast or copy an instant or sorcery spell, put a +1/+1 counter on Dragonsguard Elite. {4}{G}{G}: Double the number of +1/+1 counters on Dragonsguard Elite. | David Rapoza

Silverquill Silencer | Creature | Human Cleric | As Silverquill Silencer enters the battlefield, choose a nonland card name. Whenever an opponent casts a spell with the chosen name, they lose 3 life and you draw a card. | Zezhou Chen