Flying

When Sterling Supplier enters, put a +1/+1 counter on another target creature you control.

: Each player loses 1 life for each Swamp they control.

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 Stern Mentor is paired with another creature, each of those creatures has ": Target player mills two cards."

Flying

Whenever Stet, Draconic Proofreader attacks, you may exile a card from your graveyard. When you do, Stet, Draconic Proofreader deals 4 damage to any target whose name begins with the same letter as the exiled card.

: Delete the first letter of target permanent or player's name until end of turn.

Vigilance

: Add .

Wither (This deals damage to creatures in the form of -1/-1 counters.)

Whenever Stigma Lasher deals damage to a player, that player can't gain life for the rest of the game.

Reach

When Stiltstrider enters, you get , then you may put a sticker on a nonland permanent you own.

Flying, trample

Stingerback Terror gets -1/-1 for each card in your hand.

Plot (You may pay and exile this card from your hand. Cast it as a sorcery on a later turn without paying its mana cost. Plot only as a sorcery.)

Defender (This creature can't attack.)

, : Stinging Barrier deals 1 damage to any target.

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)

When Stinging Hivemaster dies, create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This creature can't block."

Whenever you cast your first spell during each opponent's turn, you may tap or untap target nonland permanent.

Stingmoggie enters with two +1/+1 counters on it.

, Remove a +1/+1 counter from Stingmoggie: Destroy target artifact or land.

Prowl (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Goblin or Rogue.)

Whenever a Rogue you control attacks and isn't blocked, it gets +2/+1 until end of turn.

Flying

Whenever Stinkweed Imp deals combat damage to a creature, destroy that creature.

Dredge 5 (If you would draw a card, you may mill five cards instead. If you do, return this card from your graveyard to your hand.)

Defender

When Stirring Bard enters, you take the initiative.

Mantle of Inspiration — : Target creature gains menace and haste until end of turn.

As an additional cost to cast this spell, exile a creature card from your graveyard.

Flying

, : Each player mills three cards. Exile up to two creature cards put into graveyards this way. Create an X/X blue Zombie creature token, where X is the total power of the cards exiled this way.

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

When Stockpiling Celebrant enters, you may return another target nonland permanent you control to its owner's hand. If you do, scry 2.

When Stoic Builder enters, you may return target land card from your graveyard to your hand.

Defender (This creature can't attack.)

Flying

When Stoic Ephemera blocks, sacrifice it at end of combat.

Flash

Flying

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

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

Trample

: 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.

When Stone Retrieval Unit enters, create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

Whenever one or more cards are put into exile during your turn, put a +1/+1 counter on Stonebinder's Familiar. This ability triggers only once each turn.

Trample

Whenever a creature you control with trample attacks, it gets +2/+2 until end of turn.

Reach, trample, protection from multicolored

Stonecoil Serpent enters with X +1/+1 counters on it.

: Stonefare Crocodile gains lifelink until end of turn. (Damage dealt by this creature also causes you to gain that much life.)

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.

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.

Whenever Stone-Tongue Basilisk deals combat damage to a creature, destroy that creature at end of combat.

Threshold — As long as seven or more cards are in your graveyard, all creatures able to block Stone-Tongue Basilisk do so.

: Prevent all damage that would be dealt to Stonewise Fortifier by target creature this turn.

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."

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.

When Storm Caller enters, it deals 2 damage to each opponent.

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.

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)

Storm Fleet Swashbuckler has double strike as long as you have the city's blessing.

Haste

When Storm Herald enters, return any number of Aura cards from your graveyard to the battlefield attached to creatures you control. Exile those Auras at the beginning of your next end step. If those Auras would leave the battlefield, exile them instead of putting them anywhere else.

Storm Sculptor can't be blocked.

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