During your turn, Spartan Veteran has first strike. (It deals combat damage before creatures without first strike.)

: Spartan Veteran gets +1/+0 until end of turn.

Flying

When Spawn of Thraxes enters, it deals damage to any target equal to the number of Mountains you control.

Spawning Breath deals 1 damage to any target. Create a 0/1 colorless Eldrazi Spawn creature token. It has "Sacrifice this creature: Add ."

Trample

Whenever Spawnwrithe deals combat damage to a player, create a token that's a copy of Spawnwrithe.

Creatures you control get +1/+1.

, : Destroy target creature that dealt damage to you this turn.

Equipped creature gets +1/+0.

Whenever equipped creature deals combat damage to a player, that player discards a card.

Equip (: Attach to target creature you control. Equip only as a sorcery. This card enters unattached and stays on the battlefield if the creature leaves.)

Protection from multicolored (This creature can't be blocked, targeted, dealt damage, enchanted, or equipped by anything multicolored.)

Whenever a nonbasic land an opponent controls enters, you gain 1 life.

Flying, deathtouch

Whenever Spelling Bee deals combat damage to a player, that player looks at the top card of your library and chooses a word on that card. You spell that word. If you spell it correctly, draw a card. Otherwise, scry 1.

If a green source would deal damage to you, prevent 2 of that damage.

If a red source would deal damage to you, prevent 2 of that damage.

If a blue source would deal damage to you, prevent 2 of that damage.

Flying

Whenever Sphinx Ambassador deals combat damage to a player, search that player's library for a card, then that player chooses a card name. If you searched for a creature card that doesn't have that name, you may put it onto the battlefield under your control. Then that player shuffles.

Whenever you cast an instant or sorcery spell, you may put a charge counter on Sphinx-Bone Wand. If you do, Sphinx-Bone Wand deals damage equal to the number of charge counters on it to any target.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Flash

, , Sacrifice Spiked Pit Trap: Choose target creature, then roll a d20.

1–9 | Spiked Pit Trap deals 5 damage to that creature.

10–20 | Spiked Pit Trap deals 5 damage to that creature. Create a Treasure token.

: Spikeshot Elder deals damage equal to its power to any target.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

You may have Spinebiter assign its combat damage as though it weren't blocked.

You may exile the top three black cards of your graveyard rather than pay this spell's mana cost.

Spinning Darkness deals 3 damage to target nonblack creature. You gain 3 life.

Spiraling Embers deals damage to any target equal to the number of cards in your hand.

Whenever Spireside Infiltrator becomes tapped, it deals 1 damage to each opponent.

Tap target untapped creature you control. If you do, it deals damage equal to its power to target attacking or blocking creature an opponent controls.

Flashback—, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Enchant creature you control

Whenever enchanted creature deals damage, you gain that much life.

When Spirit Loop is put into a graveyard from the battlefield, return Spirit Loop to its owner's hand.

Whenever Spiritmonger deals damage to a creature, put a +1/+1 counter on Spiritmonger.

: Regenerate Spiritmonger.

: Spiritmonger becomes the color of your choice until end of turn.

Spit Flame deals 4 damage to target creature.

Whenever a Dragon you control enters, you may pay . If you do, return Spit Flame from your graveyard to your hand.

When Spitebellows leaves the battlefield, it deals 6 damage to target creature.

Evoke (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)

At the beginning of your upkeep, Spiteful Bully deals 3 damage to target creature you control.

Spiteful Repossession deals damage to each opponent who controls more lands than you equal to the difference. Then create a number of Treasure tokens equal to the damage dealt this way.

Sliver creatures you control have "Whenever this creature is dealt damage, it deals that much damage to target player or planeswalker."

Whenever Spitemare is dealt damage, it deals that much damage to any target.

Landfall — Whenever a land you control enters, this creature deals 1 damage to each opponent.

Spitting Hydra enters with four +1/+1 counters on it.

, Remove a +1/+1 counter from Spitting Hydra: It deals 1 damage to target creature.

: Splintering Wind deals 1 damage to target creature. Create a 1/1 green Splinter creature token. It has flying and "Cumulative upkeep ." When it leaves the battlefield, it deals 1 damage to you and each creature you control. (At the beginning of its controller's upkeep, that player puts an age counter on it, then sacrifices it unless they pay its upkeep cost for each age counter on it.)

Target creature you control gets +1/+0 until end of turn for each mana from a Treasure that was spent to cast this spell. Then that creature deals damage equal to its power to target creature an opponent controls.

Tap all blocking creatures. Prevent all combat damage that would be dealt this turn. Each attacking creature and each blocking creature doesn't untap during its controller's next untap step.

Sacrifice Spore Frog: Prevent all combat damage that would be dealt this turn.

Enchant creature

When Sporogenic Infection enters, target player sacrifices a creature of their choice other than enchanted creature.

When enchanted creature is dealt damage, destroy it.

Flash

, , Sacrifice Springjaw Trap: It deals 3 damage to any target.

Flash

When Spring-Loaded Sawblades enters, it deals 5 damage to target tapped creature an opponent controls.

Craft with artifact (, Exile this artifact, Exile another artifact you control or an artifact card from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)

Flying

Whenever Spy Eye deals combat damage to a player, you may draw a card from that player's library.

Squall Line deals X damage to each creature with flying and each player.

This spell costs less to cast if you control a Giant.

Squash deals 6 damage to target creature or planeswalker.

When CARDNAME enters the battlefield, draw a card.

Combat damage uses the stack. (Combat damage assignment can be responded to before damage is dealt.)

Whenever a creature you control deals combat damage to a player, turn that creature face up or put a +1/+1 counter on it.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

Staggershock deals 2 damage to any target.

Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

When Stalking Yeti enters, if it's on the battlefield, it deals damage equal to its power to target creature an opponent controls and that creature deals damage equal to its power to Stalking Yeti.

: Return Stalking Yeti to its owner's hand. Activate only as a sorcery. ( can be paid with one mana from a snow source.)

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Prevent the next 2 damage that would be dealt to target creature this turn.

Destroy target land. Star of Extinction deals 20 damage to each creature and each planeswalker.

More Than Meets the Eye (You may cast this card converted for .)

Flying

Whenever you draw a card, if you're the monarch, target opponent loses 2 life.

Whenever one or more creatures deal combat damage to you, convert Starscream.

Starstorm deals X damage to each creature.

Cycling (, Discard this card: Draw a card.)