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

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

(: Add or .)

As Stomping Ground enters, you may pay 2 life. If you don't, it enters tapped.

Destroy target land.

Trample, indestructible

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

First strike

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.)

Haste

Storm Fleet Sprinter can't be blocked.

Draw four cards, then discard two cards. (Then exile this card. You may cast the creature later from exile.)

Flying

Stormcloud Djinn can block only creatures with flying.

: Stormcloud Djinn gets +2/+0 until end of turn and deals 1 damage to you.

This spell costs less to cast if you've cast an instant or sorcery spell this turn.

Flying

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

When Stormwing Entity enters, scry 2.

Switch target creature's power and toughness until end of turn.

Splice onto Arcane (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Destroy target creature with toughness 3 or less.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard.

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

Sliver creatures you control have first strike. (They deal combat damage before creatures without first strike.)

: Add .

, Sacrifice Strip Mine: Destroy target land.

First strike

Other Vampire creatures you control get +1/+1 and have first strike.

Each player loses 1 life for each creature they control.

Flying

Stronghold Zeppelin can block only creatures with flying.

When Student of Elements has flying, flip it.

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.

Sturdy Hatchling enters with four -1/-1 counters on it.

: Sturdy Hatchling gains shroud until end of turn. (It can't be the target of spells or abilities.)

Whenever you cast a green spell, remove a -1/-1 counter from Sturdy Hatchling.

Whenever you cast a blue spell, remove a -1/-1 counter from Sturdy Hatchling.

Target creature gets +1/+3 until end of turn. Put a reach counter on it. Untap it.

Destroy target land.

Creatures your opponents control get -1/-1 until end of turn.

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

: Add .

: Add or . Sulfurous Springs deals 1 damage to you.

If a creature spell you cast this turn was countered by a spell or ability an opponent controlled, you may pay rather than pay this spell's mana cost.

Look at the top seven cards of your library. You may put a creature card from among them onto the battlefield. Put the rest on the bottom of your library in any order.

Domain — : Until end of turn, Sunbathing Rootwalla gets +1/+1 for each basic land type among lands you control. Activate only once each turn.

Bolster X, where X is the number of cards in your hand. Each creature you control with a +1/+1 counter on it gains trample until end of turn. (To bolster X, choose a creature with the least toughness among creatures you control and put X +1/+1 counters on it.)

Destroy target land. Its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle. Creatures without flying can't block this turn.

Destroy target artifact or enchantment, then populate. (Create a token that's a copy of a creature token you control.)

When Sundering Titan enters or leaves the battlefield, choose a land of each basic land type, then destroy those lands.

, : End the turn. Activate only during your turn. (Exile all spells and abilities from the stack. Discard down to your maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)

Whenever Sungold Sentinel enters or attacks, exile up to one target card from a graveyard.

Coven — : Choose a color. Sungold Sentinel gains hexproof from that color until end of turn and can't be blocked by creatures of that color this turn. Activate only if you control three or more creatures with different powers.

Players can't gain life.

Damage can't be prevented.

When Sunspine Lynx enters, it deals damage to each player equal to the number of nonbasic lands that player controls.

Landfall — Whenever a land enters under your control, you may put a quest counter on Sunspring Expedition.

Remove three quest counters from Sunspring Expedition and sacrifice it: You gain 8 life.

Flying

When Supply-Line Cranes enters, put a +1/+1 counter on target creature.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

Whenever Suq'Ata Assassin attacks and isn't blocked, defending player gets a poison counter. <I>(A player with ten or more poison counters loses the game.)</I>

Defender

: Surge Engine loses defender and gains "This creature can't be blocked."

: Surge Engine becomes blue and has base power and toughness 5/4. Activate only if Surge Engine doesn't have defender.

: Draw three cards. Activate only if Surge Engine is blue and only once.

Ripple 4 (When you cast this spell, you may reveal the top four cards of your library. You may cast spells with the same name as this spell from among those cards without paying their mana costs. Put the rest on the bottom of your library.)

Target player discards a card.

Enchant creature

Enchanted creature gets +2/+2.

Ripple 4 (When you cast this spell, you may reveal the top four cards of your library. You may cast spells with the same name as this spell from among those cards without paying their mana costs. Put the rest on the bottom of your library.)

Whenever Surtland Flinger attacks, you may sacrifice another creature. When you do, Surtland Flinger deals damage equal to the sacrificed creature's power to any target. If the sacrificed creature was a Giant, Surtland Flinger deals twice that much damage instead.

Flying

Whenever Sustainer of the Realm blocks, it gets +0/+2 until end of turn.

Swallowing Plague deals X damage to target creature and you gain X life.

When Swarming Goblins enters, roll a d20.

1–9 | Create a 1/1 red Goblin creature token.

10–19 | Create two of those tokens.

20 | Create three of those tokens.

When Swashbuckler Extraordinaire enters, create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Whenever you attack, you may sacrifice one or more Treasures. When you do, up to that many target creatures gain double strike until end of turn.

Target creature you control gains double strike until end of turn. (Then exile this card. You may cast the artifact later from exile.)

Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, you may cast Swift Reckoning as though it had flash. (You may cast it any time you could cast an instant.)

Destroy target tapped creature.