Expressive Firedancer

Opus — Whenever you cast an instant or sorcery spell, this creature gets +1/+1 until end of turn. If five or more mana was spent to cast that spell, this creature also gains double strike until end of turn.

Potioner's Trove

{T}: Add one mana of any color.
{T}: You gain 2 life. Activate only if you've cast an instant or sorcery spell this turn.

Mountain

Tester of the Tangential

Increment (Whenever you cast a spell, if the amount of mana you spent is greater than this creature's power or toughness, put a +1/+1 counter on this creature.)
At the beginning of combat on your turn, you may pay {X}. When you do, move X +1/+1 counters from this creature onto another target creature.

Heated Argument

Heated Argument deals 6 damage to target creature. You may exile a card from your graveyard. If you do, Heated Argument also deals 2 damage to that creature's controller.

Deluge Virtuoso

When this creature enters, tap target creature an opponent controls and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)
Opus — Whenever you cast an instant or sorcery spell, this creature gets +1/+1 until end of turn. If five or more mana was spent to cast that spell, this creature gets +2/+2 until end of turn instead.

Rubble Rouser

When this creature enters, you may discard a card. If you do, draw a card.
{T}, Exile a card from your graveyard: Add {R}. When you do, this creature deals 1 damage to each opponent.

Run Behind

This spell costs {1} less to cast if it targets an attacking creature.
Target creature's owner puts it on their choice of the top or bottom of their library.

Garrison Excavator

Menace (This creature can't be blocked except by two or more creatures.)
Whenever one or more cards leave your graveyard, create a 2/2 red and white Spirit creature token.

Banishing Betrayal

Return target nonland permanent to its owner's hand. Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Flow State

Look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order. If there is an instant card and a sorcery card in your graveyard, instead put two of them into your hand and the rest on the bottom of your library in any order.

Island

Muse's Encouragement

Create a 3/3 blue and red Elemental creature token with flying.
Surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Abstract Paintmage

At the beginning of your first main phase, add {U}{R}. Spend this mana only to cast instant and sorcery spells.

Prismari Charm

Choose one —
• Surveil 2, then draw a card.
• Prismari Charm deals 1 damage to each of one or two targets.
• Return target nonland permanent to its owner's hand.

Vibrant Idea

Landscape Painter

This creature enters prepared. (While it's prepared, you may cast a copy of its spell. Doing so unprepares it.)

Landscape Painter // Vibrant Idea

Wisdom of Ages

Return all instant and sorcery cards from your graveyard to your hand. You have no maximum hand size for the rest of the game.
Exile Wisdom of Ages.

Prismari, the Inspiration

Flying
Ward—Pay 5 life.
Instant and sorcery spells you cast have storm. (Whenever you cast an instant or sorcery spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Duel Tactics

Duel Tactics deals 1 damage to target creature. It can't block this turn.
Flashback {1}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Charging Strifeknight

Tome Blast

Tome Blast deals 2 damage to any target.
Flashback {4}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Pensive Professor

Increment (Whenever you cast a spell, if the amount of mana you spent is greater than this creature's power or toughness, put a +1/+1 counter on this creature.)
Whenever one or more +1/+1 counters are put on this creature, draw a card.

Stormcarved Coast

This land enters tapped unless you control two or more other lands.
{T}: Add {U} or {R}.

Spectacle Summit

This land enters tapped.
{T}: Add {U} or {R}.
{2}{U}{R}, {T}: Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Fractal Anomaly

Create a 0/0 green and blue Fractal creature token and put X +1/+1 counters on it, where X is the number of cards you've drawn this turn.