Gain control of target creature you don't control until end of turn. Untap that creature. It gains haste until end of turn.

Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Destroy target land. Its controller loses 2 life.

Destroy target enchantment. Clash with an opponent. If you win, destroy all enchantments your opponents control. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.)

Whenever Spring Splasher attacks, target creature defending player controls gets -3/-0 until end of turn.

Whenever Springjack Knight attacks, clash with an opponent. If you win, target creature gains double strike until end of turn. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.)

Chroma — When Springjack Shepherd enters, create a 0/1 white Goat creature token for each white mana symbol in the mana costs of permanents you control.

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever Spring-Leaf Avenger deals combat damage to a player, return target permanent card from your graveyard to your hand.

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.)

Springmantle Cleric enters with a +1/+1 counter on it for each color of mana spent to cast it.

Sprinting Warbrute attacks each combat if able.

Dash (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)

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.)

Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)

Create a 1/1 green Saproling creature token.

Defender (This creature can't attack.)

Whenever Sprouting Phytohydra is dealt damage, you may create a token that's a copy of Sprouting Phytohydra.

When Sprouting Thrinax dies, create three 1/1 green Saproling creature tokens.

: Return two target cards from an opponent's graveyard to their hand. Destroy target attacking creature.

Flying

When Spyglass Siren enters, create a Map token. (It's an artifact with ", , Sacrifice this artifact: Target creature you control explores. Activate only as a sorcery.")

Vigilance (Attacking doesn't cause this creature to tap.)

Squad Captain enters with a +1/+1 counter on it for each other creature you control.

: Look at the top four cards of your library. You may reveal a creature card with power 2 or less from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Squall deals 2 damage to each creature with flying.

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

Sacrifice a land: Add one mana of any type the sacrificed land could produce.

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

Squash deals 6 damage to target creature or planeswalker.

Kinship — At the beginning of your upkeep, you may look at the top card of your library. If it shares a creature type with Squeaking Pie Grubfellows, you may reveal it. If you do, each opponent discards a card.

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

When Squealing Devil enters, you may pay . If you do, target creature gets +X/+0 until end of turn.

When Squealing Devil enters, sacrifice it unless was spent to cast it.

At the beginning of your upkeep, you may return Squee, Goblin Nabob from your graveyard to your hand.

Enchant creature

Enchanted creature gets +2/+2.

When enchanted creature dies, return that card to its owner's hand.

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

: Reveal a card in your hand, covering the artist credit. Target opponent guesses the artist. If they guess wrong, create a 1/1 green Squirrel creature token.

When Squirrel Squatters enters, open an Attraction. (Put the top card of your Attraction deck onto the battlefield.)

Whenever Squirrel Squatters attacks, create a 1/1 green Squirrel creature token that's tapped and attacking for each Attraction you've visited this turn.

Visit — You have five seconds to stack dice on top of one another. If you stack at least five dice, claim the prize

Prize — Create a 1/1 green Squirrel creature token for each die you stacked above the fourth, then sacrifice Squirrel Stack and open an Attraction.

Lights — 2, 4, 6

Visit — You have five seconds to stack dice on top of one another. If you stack at least five dice, claim the prize

Prize — Create a 1/1 green Squirrel creature token for each die you stacked above the fourth, then sacrifice Squirrel Stack and open an Attraction.

Lights — 3, 4, 6

Visit — You have five seconds to stack dice on top of one another. If you stack at least five dice, claim the prize

Prize — Create a 1/1 green Squirrel creature token for each die you stacked above the fourth, then sacrifice Squirrel Stack and open an Attraction.

Lights — 4, 5, 6

, Sacrifice a land: Create two 1/1 green Squirrel creature tokens.

, Sacrifice a land: Squirrel creatures get +1/+1 until end of turn.

Whenever you cast an Aura, Equipment, or Vehicle spell, draw a card.

Target creature gets -2/-2 until end of turn.

Target creature gets -1/-1 until end of turn. Tap that creature.

At the beginning of each opponent's upkeep, that player loses 1 life for each card fewer than three in their hand.

When Stadium Vendors enters, choose a player. That player adds two mana of any one color they choose.

: Untap Staff of Domination.

, : You gain 1 life.

, : Untap target creature.

, : Tap target creature.

, : Draw a card.

At the beginning of your upkeep, draw a card.

: Staff of Nin deals 1 damage to any target.

Whenever you cast a black spell or a Swamp you control enters, you gain 1 life.

As Staff of the Letter Magus enters, choose a consonant other than N, R, S, or T.

Whenever a player casts a spell, you gain 1 life for each time the chosen letter appears in that spell's name.

When Staff of the Storyteller enters, create a 1/1 white Spirit creature token with flying.

Whenever you create one or more creature tokens, put a story counter on Staff of the Storyteller.

, , Remove a story counter from Staff of the Storyteller: Draw a card.

Whenever you cast a green spell or a Forest you control enters, you gain 1 life.

, : Target creature gets -2/-0 until end of turn.

Stag Beetle enters with X +1/+1 counters on it, where X is the number of other creatures on the battlefield.

Enchant creature

Enchanted creature gets +1/+1 and has lifelink and "Whenever this creature deals combat damage to a player, draw a card."

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.)

Menace

At the beginning of your end step, if you descended this turn, put a +1/+1 counter on Stalactite Stalker. (You descended if a permanent card was put into your graveyard from anywhere.)

, Sacrifice Stalactite Stalker: Target creature gets -X/-X until end of turn, where X is Stalactite Stalker's power.

Swampwalk, forestwalk (This creature can't be blocked as long as defending player controls a Swamp or a Forest.)

Flying

, Discard a card: Stalking Bloodsucker gets +2/+2 until end of turn.