Commander 2021

Deekah, Fractal Theorist

Deekah, Fractal Theorist {4}{U}

Legendary Creature - Human Wizard
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.
3/3
Inspiring Refrain

Inspiring Refrain {4}{U}{U}

Sorcery
Draw two cards. Exile Inspiring Refrain with three time counters on it.
Suspend 3—{2}{U}
Muse Vortex

Muse Vortex {X}{U}{U}

Sorcery
Exile the top X cards of your library. You may cast an instant or sorcery spell with mana value X or less from among them without paying its mana cost. Then put the exiled instant and sorcery cards that weren't cast this way into your hand and the rest on the bottom of your library in a random order.
Octavia, Living Thesis

Octavia, Living Thesis {8}{U}{U}

Legendary Creature - Elemental Octopus
This spell costs {8} less to cast if you have eight or more instant and/or sorcery cards in your graveyard.
Ward {8}
Magecraft — Whenever you cast or copy an instant or sorcery spell, target creature has base power and toughness 8/8 until end of turn.
8/8
Perplexing Test

Perplexing Test {3}{U}{U}

Instant
Choose one —
• Return all creature tokens to their owners' hands.
• Return all nontoken creatures to their owners' hands.
"Your proofs were a bit nontraditional, but effective nonetheless. Full marks."
Replication Technique

Replication Technique {4}{U}

Sorcery
Demonstrate
Create a token that's a copy of target permanent you control.
Sly Instigator

Sly Instigator {3}{U}

Creature - Human Wizard
{U}, {T}: Until your next turn, target creature an opponent controls can't be blocked. Goad that creature.
"Me? I'm just an innocent bystander!"
2/4
Spawning Kraken

Spawning Kraken {5}{U}

Creature - Kraken
Whenever a Kraken, Leviathan, Octopus, or Serpent you control deals combat damage to a player, create a 9/9 blue Kraken creature token.
"I never imagined I'd lay eyes on a creature that makes Gyruda look small and harmless!"
—Lukka
6/6
Theoretical Duplication

Theoretical Duplication {2}{U}

Instant
Whenever a nontoken creature an opponent controls enters this turn, create a token that's a copy of that creature.
"You made it asymmetrical just to annoy me, didn't you?"
—Imbraham, Quandrix dean
Author of Shadows

Author of Shadows {4}{B}

Creature - Shade Warlock
When Author of Shadows enters, exile all opponents' graveyards. Choose a nonland card exiled this way. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell.
3/3
Blight Mound

Blight Mound {2}{B}

Enchantment
Attacking Pests you control get +1/+0 and have menace.
Whenever a nontoken creature you control dies, create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life."
Pests feed on carrion, mud, and one another.
Bold Plagiarist

Bold Plagiarist {3}{B}

Creature - Vampire Rogue
Flash
Whenever an opponent puts one or more counters on a creature they control, they put the same number and kind of counters on Bold Plagiarist.
"I know a good idea when I see one."
2/2
Cunning Rhetoric

Cunning Rhetoric {2}{B}

Enchantment
Whenever an opponent attacks you and/or one or more planeswalkers you control, exile the top card of that player's library. You may play that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast it.
Essence Pulse

Essence Pulse {3}{B}

Sorcery
You gain 2 life. Each creature gets -X/-X until end of turn, where X is the amount of life you gained this turn.
"There is nothing so invigorating and stubbornly belligerent as the pure energy of life."
—Valentin, Witherbloom dean
Fain, the Broker

Fain, the Broker {2}{B}

Legendary Creature - Human Warlock
{T}, Sacrifice a creature: Put two +1/+1 counters on target creature.
{T}, Remove a counter from a creature you control: Create a Treasure token.
{T}, Sacrifice an artifact: Create a 2/1 white and black Inkling creature token with flying.
{3}{B}: Untap Fain, the Broker.
3/3
Incarnation Technique

Incarnation Technique {4}{B}

Sorcery
Demonstrate
Mill five cards, then return a creature card from your graveyard to the battlefield.
"Draw out your fear, but don't let it control you. You're in charge now."
Keen Duelist

Keen Duelist {1}{B}

Creature - Human Wizard
At the beginning of your upkeep, you and target opponent each reveal the top card of your library. You each lose life equal to the mana value of the card revealed by the other player. You each put the card you revealed into your hand.
2/2
Marshland Bloodcaster

Marshland Bloodcaster {4}{B}

Creature - Vampire Warlock
Flying
{1}{B}, {T}: Rather than pay the mana cost of the next spell you cast this turn, you may pay life equal to that spell's mana value.
Blood magic is more artery than science.
3/5
Stinging Study

Stinging Study {4}{B}

Instant
You draw X cards and you lose X life, where X is the mana value of a commander you own on the battlefield or in the command zone.
Silverquill first-years welcome discomfort in the classroom, knowing it will prepare them for the years ahead.
Tivash, Gloom Summoner

Tivash, Gloom Summoner {4}{B}

Legendary Creature - Human Warlock
Lifelink
At the beginning of your end step, if you gained life this turn, you may pay X life, where X is the amount of life you gained this turn. If you do, create an X/X black Demon creature token with flying.
4/4
Veinwitch Coven

Veinwitch Coven {2}{B}

Creature - Vampire Warlock
Menace
Whenever you gain life, you may pay {B}. If you do, return target creature card from your graveyard to your hand.
Some Strixhaven study groups are more welcoming than others.
3/3
Audacious Reshapers

Audacious Reshapers {2}{R}

Creature - Human Artificer
{T}, Sacrifice an artifact: Reveal cards from the top of your library until you reveal an artifact card. Put that card onto the battlefield and the rest on the bottom of your library in a random order. Audacious Reshapers deals damage to you equal to the number of cards revealed this way.
3/3
Battlemage's Bracers

Battlemage's Bracers {2}{R}

Artifact - Equipment
Equipped creature has haste.
Whenever an ability of equipped creature is activated, if it isn't a mana ability, you may pay {1}. If you do, copy that ability. You may choose new targets for the copy.
Equip {2}
Creative Technique

Creative Technique {4}{R}

Sorcery
Demonstrate
Shuffle your library, then reveal cards from the top of it until you reveal a nonland card. Exile that card and put the rest on the bottom of your library in a random order. You may cast the exiled card without paying its mana cost.
Cursed Mirror

Cursed Mirror {2}{R}

Artifact
{T}: Add {R}.
As Cursed Mirror enters, you may have it become a copy of any creature on the battlefield until end of turn, except it has haste.