Flip a coin. If you win the flip, take an extra turn after this one.

Exploit (When this creature enters, you may sacrifice a creature.)

When Stitched Assistant exploits a creature, scry 1, then draw a card. (To scry 1, look at the top card of your library, then you may put that card on the bottom.)

Stitched Mangler enters tapped.

When Stitched Mangler enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.

, : Create a 2/2 blue Homunculus creature token, then sacrifice a creature.

When Stitcher's Supplier enters or dies, mill three cards. (Put the top three cards of your library into your graveyard.)

Whenever you put one or more +1/+1 counters on a creature you control, put a supply counter on Stocking the Pantry.

, Remove a supply counter from Stocking the Pantry: Draw a card.

Flying, vigilance

Players can't untap more than one creature during their untap steps.

Whenever a player cycles a card, Stoic Champion gets +2/+2 until end of turn.

When Stoic Farmer enters, search your library for a basic Plains card and reveal it. If an opponent controls more lands than you, put it onto the battlefield tapped. Otherwise, put it into your hand. Then shuffle.

Foretell (During your turn, you may pay and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Flash

Flying

Stoic Sphinx has hexproof as long as you haven't cast a spell this turn.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Stoke the Flames deals 4 damage to any target.

Distribute three +1/+1 counters among any number of target creatures you control.

Stolen Grain deals 5 damage to target opponent or planeswalker. You gain 5 life.

At the beginning of your upkeep, exile the top card of each opponent's library. Until end of turn, you may cast spells from among those exiled cards, and you may spend mana as though it were mana of any color to cast those spells.

Damage can't be prevented this turn. Stomp deals 2 damage to any target.

Trample

Reveal the top seven cards of your library, then put those cards on the bottom of your library in any order. If a card named Stomping Slabs was revealed this way, Stomping Slabs deals 7 damage to any target.

: Destroy target tapped nonblack creature. Activate only during your turn, before attackers are declared.

: Target creature you control with toughness less than Stone Giant's power gains flying until end of turn. Destroy that creature at the beginning of the next end step.

, : You gain 1 life.

Whenever Stone Haven Pilgrim attacks, if you control an artifact or enchantment, Stone Haven Pilgrim gets +1/+1 and gains lifelink until end of turn.

This spell costs less to cast for each attacking creature.

Create a 6/12 colorless Construct artifact creature token with trample. Exile it at the beginning of your next end step.

If a creature an opponent controls would die, exile it instead.

, , Sacrifice Stone of Erech: Exile target player's graveyard. Draw a card.

Destroy target land.

Stone Spirit can't be blocked by creatures with flying.

Whenever one or more cards leave your graveyard, scry 1.

Flash

Flying

When Stonecloaker enters, return a creature you control to its owner's hand.

When Stonecloaker enters, exile target card from a graveyard.

Whenever Stone-Cold Basilisk blocks or becomes blocked by a creature with fewer letters in its name, destroy that creature at end of combat. (Punctuation and spaces aren't letters.)

Whenever an opponent reads Stone-Cold Basilisk, that player is turned to stone until end of turn. Stoned players can't attack, block, cast spells, or activate abilities.

Cohort — , Tap an untapped Ally you control: Look at the top four cards of your library. You may reveal an Equipment card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

When Stoneforge Mystic enters, you may search your library for an Equipment card, reveal it, put it into your hand, then shuffle.

, : You may put an Equipment card from your hand onto the battlefield.

Enchant creature

Enchanted creature gets +0/+2.

: Enchanted creature gets +1/+0 until end of turn.

Trample, indestructible

Whenever another creature you control attacks, it gains trample and indestructible until end of turn.

When Stonehorn Dignitary enters, target opponent skips their next combat phase.

Landfall — Whenever a land you control enters, untap Stone-Seeder Hierophant.

: Untap target land.

: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)

When Stoneshock Giant becomes monstrous, creatures without flying your opponents control can't block this turn.

: Add .

, , Sacrifice Stonespeaker Crystal: Exile any number of target players' graveyards. Draw a card.

First strike

Flying

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 creature gets +5/+5 and gains shroud until end of turn. (It can't be the target of spells or abilities.)

Stonework Packbeast is also a Cleric, Rogue, Warrior, and Wizard.

: Add one mana of any color.

Soulbond (You may pair this creature with another unpaired creature when either enters. They remain paired for as long as you control both of them.)

As long as Stonewright is paired with another creature, each of those creatures has ": This creature gets +1/+0 until end of turn."

Put a +1/+1 counter on target creature you control. Untap that creature.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Merfolk spells and Wizard spells you cast cost less to cast.

Flash

Enchant artifact or creature

When Stop Cold enters, tap enchanted permanent.

Enchanted permanent loses all abilities and doesn't untap during its controller's untap step.

As long as Storage Matrix is untapped, each player chooses artifact, creature, or land during their untap step. That player can untap only permanents of the chosen type this step.

Each player may play an additional land during each of their turns.

Whenever a land is tapped for mana, return it to its owner's hand.

Flying

, Exile the top card of your library: Tap target creature with flying.

, Exile the top card of your library: If the exiled card is a snow land, Storm Elemental gets +1/+1 until end of turn.

Flying

Raid — Storm Fleet Aerialist enters with a +1/+1 counter on it if you attacked this turn.

Flying

Parley — Whenever Storm Fleet Negotiator attacks, each player reveals the top card of their library. For each nonland card revealed this way, you create a Map token. Then each player draws a card. (A Map token is an artifact with ", , Sacrifice this artifact: Target creature you control explores. Activate only as a sorcery.")

Haste

Storm Fleet Sprinter can't be blocked.