Arcane Denial

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep.
You draw a card at the beginning of the next turn's upkeep.

Archmage Emeritus

Magecraft — Whenever you cast or copy an instant or sorcery spell, draw a card.

Expansion Algorithm

Proliferate X times. (To proliferate, choose any number of permanents and/or players, then give each another counter of each kind already there.)

On an Adventure

Brazen Borrower // Petty Theft

Brazen Borrower

Flash
Flying
This creature can block only creatures with flying.

Petty Theft

Return target nonland permanent an opponent controls to its owner's hand.

Curiosity Crafter

Flying
You have no maximum hand size.
Whenever a creature token you control deals combat damage to a player, draw a card.

Boar

Curse of the Swine

Exile X target creatures. For each creature exiled this way, its controller creates a 2/2 green Boar creature token.

Fractal

Deekah, Fractal Theorist

Magecraft — Whenever you cast or copy an instant or sorcery spell, create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it, where X is that spell's mana value.
{3}{U}: Target creature token can't be blocked this turn.

Deep Analysis

Target player draws two cards.
Flashback—{1}{U}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Dig Through Time

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)
Look at the top seven cards of your library. Put two of them into your hand and the rest on the bottom of your library in any order.

Entrancing Melody

Gain control of target creature with mana value X.

Perplexing Test

Choose one —
• Return all creature tokens to their owners' hands.
• Return all nontoken creatures to their owners' hands.

Rapid Hybridization

Frog Lizard

Destroy target creature. It can't be regenerated. That creature's controller creates a 3/3 green Frog Lizard creature token.

Reality Shift

Manifest

Exile target creature. Its controller manifests the top card of their library. (That player puts the top card of their library onto the battlefield face down as a 2/2 creature. If it's a creature card, it can be turned face up any time for its mana cost.)

Excava, the Risen Past

Flying, haste
Whenever Excava attacks, return up to one target artifact, creature, or non-Aura enchantment card with mana value 3 or less from your graveyard to the battlefield with a finality counter on it. It's a 1/1 Spirit creature with flying in addition to its other types. (If a creature with a finality counter on it would die, exile it instead.)

Leitmotif Composer

Copy

Whenever this creature deals combat damage to a player, draw a card.
Whenever you cast an instant or sorcery spell with mana value 5 or greater, create a token that's a copy of this creature.
{2}{U}: Creatures named Leitmotif Composer can't be blocked this turn.

Replication Technique

Demonstrate (When you cast this spell, you may copy it. If you do, choose an opponent to also copy it. Players may choose new targets for their copies.)
Create a token that's a copy of target permanent you control.

Secrets of Strixhaven Commander