Menace

At the beginning of your upkeep, each player draws a card and loses 1 life.

Stormkeld Vanguard can't be blocked by creatures with power 2 or less.

Enchant creature

When Strands of Undeath enters, target player discards two cards.

: Regenerate enchanted creature.

Flying

Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)

When Stratus Dancer is turned face up, counter target instant or sorcery spell.

Vigilance, trample

Grenades — , , Sacrifice an artifact: Choose a player at random. When you do, Strax fights another target creature that player controls.

Glory of Battle — Whenever Strax deals damage to a creature, put a +1/+1 counter on Strax.

Target player mills four cards. You shuffle up to four cards from your graveyard into your library.

Replicate (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)

: Target Merfolk creature gets +1/+1 and gains islandwalk until end of turn. (It can't be blocked as long as defending player controls an Island.)

: Target land becomes an Island until end of turn.

Until end of turn, target creature gains trample and gets +X/+X, where X is the number of attacking creatures.

Multikicker (You may pay an additional any number of times as you cast this spell.)

Choose target creature, then choose another target creature for each time this spell was kicked. Put X +1/+1 counters on each of them.

: Add . Put a point counter on Strixhaven Stadium.

Whenever a creature deals combat damage to you, remove a point counter from Strixhaven Stadium.

Whenever a creature you control deals combat damage to an opponent, put a point counter on Strixhaven Stadium. Then if it has ten or more point counters on it, remove them all and that player loses the game.

Look at the top four cards of your library. Choose one of them and put all cards with the same name as the chosen card from among them into your hand. You lose 1 life for each card put into your hand this way. Put the rest on the bottom of your library in a random order.

Trample

Whenever Stromkirk Occultist deals combat damage to a player, exile the top card of your library. Until end of turn, you may play that card.

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

When Strongarm Thug enters, you may return target Mercenary card from your graveyard to your hand.

Target player sacrifices an artifact and a land. Structural Collapse deals 2 damage to that player.

Struggle deals damage to target creature equal to the number of lands you control.

Target opponent reveals their hand. That player exiles a card from it, then you exile a card from it. Repeat this process until all cards in that hand have been exiled. That player returns the cards they exiled this way to their hand and puts the rest into their graveyard.

When this creature enters,

exile target creature card with mana value 2 or less from your graveyard. If it has augment, combine it with a host you control. Otherwise, put it onto the battlefield.

Counter target noncreature spell unless its controller pays .

Ferocious — If you control a creature with power 4 or greater, counter that spell instead.

Whenever you cast a noncreature spell, you gain 2 life.

Study enters tapped.

: Add or .

, : Investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

: Add .

, : Add one mana of any color. When you spend this mana to cast your commander, scry X, where X is the number of times it's been cast from the command zone this game.

Indestructible

As Stuffy Doll enters, choose a player.

Whenever Stuffy Doll is dealt damage, it deals that much damage to the chosen player.

: Stuffy Doll deals 1 damage to itself.

When Stumpsquall Hydra enters, distribute X +1/+1 counters among it and any number of commanders.

, : Stun Sniper deals 1 damage to target creature. Tap that creature.

Flash

Enchant creature

When Stunning Strike enters, tap enchanted creature and remove it from combat.

As long as enchanted creature isn't legendary, it doesn't untap during its controller's untap step.

Target player chooses three cards from their hand and puts them on top of their library in any order.

Target opponent discards a card at random, then discards a card.

Flying

Sturmgeist's power and toughness are each equal to the number of cards in your hand.

Whenever Sturmgeist deals combat damage to a player, draw a card.

Prevent all combat damage that would be dealt by target creature this turn. That creature gets +0/+X until end of turn, where X is its mana value.

Gain control of each noncommander creature with mana value 3 or less.

Flying

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Other creatures you control have exalted. (If a creature has multiple instances of exalted, each triggers separately.)

Undaunted (This spell costs less to cast for each opponent.)

Destroy all creatures.

Submerged Boneyard enters tapped.

: Add or .

Whenever Subterranean Schooner attacks, target creature that crewed it this turn explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on that creature, then put the card back or put it into your graveyard.)

Crew 1

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

When Subterranean Shambler enters or leaves the battlefield, it deals 1 damage to each creature without flying.

Subterranean Tremors deals X damage to each creature without flying. If X is 4 or more, destroy all artifacts. If X is 8 or more, create an 8/8 red Lizard creature token.

Flash

Flying

When Subtlety enters, choose up to one target creature spell or planeswalker spell. Its owner puts it on the top or bottom of their library.

Evoke—Exile a blue card from your hand.

, Pay 2 life: Choose one. Activate only once.

• Subversive Acolyte becomes a Human Cleric. It gets +1/+2 and gains lifelink.

• Subversive Acolyte becomes a Phyrexian. It gets +3/+3 and gains trample and "Whenever this creature is dealt damage, sacrifice that many permanents."

You draw two cards and you lose 2 life.

When Su-Chi dies, add .

Target creature gets +2/+0 and gains first strike until end of turn.

Create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Choose a color. Sudden Demise deals X damage to each creature of the chosen color.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Target player sacrifices a creature.

Draw a card for each different mana value among nonland cards in your graveyard.

Choose up to three target permanent cards in graveyards that were put there from the battlefield this turn. Return them to the battlefield tapped under their owners' control. You draw a card for each opponent who controls one or more of those permanents.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Sudden Shock deals 2 damage to any target.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Until end of turn, creatures target player controls lose all abilities and have base power and toughness 0/2.

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

Draw a card.

Exile X target cards from target player's graveyard. For each card exiled this way, that player loses 1 life and you gain 1 life.