Grave Researcher

At the beginning of your upkeep, surveil 1. Then if there are three or more creature cards in your graveyard, this creature becomes prepared. (While it's prepared, you may cast a copy of its spell. Doing so unprepares it.)

Reanimate

Put target creature card from a graveyard onto the battlefield under your control. You lose life equal to that card's mana value.

Grave Researcher // Reanimate

Last Gasp

Target creature gets -3/-3 until end of turn.

Lecturing Scornmage

Repartee — Whenever you cast an instant or sorcery spell that targets a creature, put a +1/+1 counter on this creature.

Leech Collector

Whenever you gain life for the first time each turn, this creature becomes prepared. (While it's prepared, you may cast a copy of its spell. Doing so unprepares it.)

Bloodletting

Leech Collector // Bloodletting

Masterful Flourish

Target creature you control gets +1/+0 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Daydream

Exile target creature you control, then return that card to the battlefield under its owner's control with a +1/+1 counter on it.
Flashback {2}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Melancholic Poet

Repartee — Whenever you cast an instant or sorcery spell that targets a creature, each opponent loses 1 life and you gain 1 life.

Moseo, Vein's New Dean

Pest

Flying
When Moseo enters, create a 1/1 black and green Pest creature token with "Whenever this token attacks, you gain 1 life."
Infusion — At the beginning of your end step, if you gained life this turn, return up to one target creature card with mana value X or less from your graveyard to the battlefield, where X is the amount of life you gained this turn.

Poisoner's Apprentice

Infusion — When this creature enters, target creature an opponent controls gets -4/-4 until end of turn if you gained life this turn.

Postmortem Professor

This creature can't block.
Whenever this creature attacks, each opponent loses 1 life and you gain 1 life.
{1}{B}, Exile an instant or sorcery card from your graveyard: Return this card from your graveyard to the battlefield.

Pox Plague

Each player loses half their life, then discards half the cards in their hand, then sacrifices half the permanents they control of their choice. Round down each time.

Pull from the Grave

Return up to two target creature cards from your graveyard to your hand. You gain 2 life.

Rabid Attack

Until end of turn, any number of target creatures you control each get +1/+0 and gain "When this creature dies, draw a card."

Ral Zarek, Guest Lecturer

+1: Surveil 2.
−1: Any number of target players each discard a card.
−2: Return target creature card with mana value 3 or less from your graveyard to the battlefield.
−7: Flip five coins. Target opponent skips their next X turns, where X is the number of coins that came up heads.

Scathing Shadelock

At the beginning of your first main phase, this creature becomes prepared. (While it's prepared, you may cast a copy of its spell. Doing so unprepares it.)

Venomous Words

Target creature you control gets +2/+0 and gains deathtouch until end of turn.

Scathing Shadelock // Venomous Words

Scheming Silvertongue

Flying, lifelink
At the beginning of your second main phase, if you gained 2 or more life this turn, this creature becomes prepared. (While it's prepared, you may cast a copy of its spell. Doing so unprepares it.)

Sign in Blood

Target player draws two cards and loses 2 life.

Secrets of Strixhaven