When Scourge Devil enters the battlefield, creatures you control get +1/+0 until end of turn.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Scourge of Geier Reach gets +1/+1 for each creature your opponents control.

Flying

You may cast Scourge of Nel Toth from your graveyard by paying and sacrificing two creatures rather than paying its mana cost.

Flying

Whenever Scourge of Valkas or another Dragon enters the battlefield under your control, it deals X damage to any target, where X is the number of Dragons you control.

: Scourge of Valkas gets +1/+0 until end of turn.

This spell can't be countered.

Protection from blue

Deathtouch

Whenever Scream Puff deals combat damage to a player, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Flying

When Screaming Seahawk enters the battlefield, you may search your library for a card named Screaming Seahawk, reveal it, put it into your hand, then shuffle.

Flying

: Creatures you control get +1/+0 until end of turn.

When Scrivener enters the battlefield, you may return target instant card from your graveyard to your hand.

Defender

: Adapt 3. (If this creature has no +1/+1 counters on it, put three +1/+1 counters on it.)

As long as Scuttlegator has a +1/+1 counter on it, it can attack as though it didn't have defender.

Scuttling Doom Engine can't be blocked by creatures with power 2 or less.

When Scuttling Doom Engine dies, it deals 6 damage to target opponent or planeswalker.

Flying

Whenever Scythe Specter deals combat damage to a player, each opponent discards a card. Each player who discarded a card with the highest mana value among cards discarded this way loses life equal to that mana value.

: Draw a card for each Ally you control.

Sea Monster can't attack unless defending player controls an Island.

: Target land becomes the basic land type of your choice until end of turn.

Sealock Monster can't attack unless defending player controls an Island.

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

When Sealock Monster becomes monstrous, target land becomes an Island in addition to its other types.

Each creature card in your graveyard has unearth . (: Return the card to the battlefield. The creature gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

When Seedguide Ash dies, you may search your library for up to three Forest cards, put them onto the battlefield tapped, then shuffle.

Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)

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

Trample

, Sacrifice a land: Draw a card.

Mountaincycling (, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.)

Sekki, Seasons' Guide enters the battlefield with eight +1/+1 counters on it.

If damage would be dealt to Sekki, prevent that damage, remove that many +1/+1 counters from Sekki, and create that many 1/1 colorless Spirit creature tokens.

Sacrifice eight Spirits: Return Sekki from your graveyard to the battlefield.

Flying

Pay 2 life: Return Selenia, Dark Angel to its owner's hand.

When Self-Assembler enters the battlefield, you may search your library for an Assembly-Worker creature card, reveal it, put it into your hand, then shuffle.

At the beginning of your upkeep, choose target opponent. This turn, that player can't cast spells or activate abilities and plays with their hand revealed. You may play lands and cast spells from that player's hand this turn.

Flying

Whenever one or more other creatures die, put a +1/+1 counter on Sengir Connoisseur. This ability triggers only once each turn.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Whenever a creature dealt damage by Sengir Vampire this turn dies, put a +1/+1 counter on Sengir Vampire.

When Sensor Splicer enters the battlefield, create a 3/3 colorless Phyrexian Golem artifact creature token.

Golem creatures you control have vigilance.

Flash

When Sentinel of the Pearl Trident enters the battlefield, you may exile target historic permanent you control. If you do, return that card to the battlefield under its owner's control at the beginning of the next end step. (Artifacts, legendaries, and Sagas are historic.)

Vigilance, reach

Defender

At the beginning of combat on your turn, you may clash with an opponent. If you win, Sentry Oak gets +2/+0 and loses defender 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.)

You may pay and tap four untapped creatures you control with flying rather than pay this spell's mana cost.

Flying, lifelink

Other creatures you control with flying have indestructible. (Damage and effects that say "destroy" don't destroy them.)

Flying

Whenever a creature dealt damage by Seraph this turn dies, put that card onto the battlefield under your control at the beginning of the next end step. Sacrifice the creature when you lose control of Seraph.

Flying

Indestructible (Damage and effects that say "destroy" don't destroy this creature. If its toughness is 0 or less, it's still put into its owner's graveyard.)

Serpent of the Endless Sea's power and toughness are each equal to the number of Islands you control.

Serpent of the Endless Sea can't attack unless defending player controls an Island.

: Serpentine Kavu gains haste until end of turn.

Serra Avatar's power and toughness are each equal to your life total.

When Serra Avatar is put into a graveyard from anywhere, shuffle it into its owner's library.

Flying

Whenever another creature with power 2 or less enters the battlefield under your control, put two +1/+1 counters on that creature.

Flying

As Serra's Emissary enters the battlefield, choose a card type.

You and creatures you control have protection from the chosen card type.

Flying

Whenever you cast a noncreature spell, put an oil counter on Serum Sovereign.

, Remove an oil counter from Serum Sovereign: Draw a card, then scry 2.

Flying

: Setessan Griffin gets +2/+2 until end of turn. Activate only once each turn.

Prevent all damage that would be dealt to Sevinne, the Chronoclasm.

Whenever you cast your first instant or sorcery spell from your graveyard each turn, copy that spell. You may choose new targets for the copy.

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

Sacrifice Sewerdreg: Exile target card from a graveyard.

If your life total is less than your starting life total, this spell costs less to cast, where X is the difference.

Flying

When Shadowborn Demon enters the battlefield, destroy target non-Demon creature.

At the beginning of your upkeep, if there are fewer than six creature cards in your graveyard, sacrifice a creature.

Horses you control have haste. (They can attack and as soon as they come under your control.)

Whenever Shadowfax, Lord of Horses attacks, you may put a creature card with lesser power from your hand onto the battlefield tapped and attacking.

Flying, double strike

At the beginning of combat on your turn, you may choose two. Each mode must target a different player.

• Target player creates a 2/1 white and black Inkling creature token with flying.

• Target player draws a card and loses 1 life.

• Target player puts a +1/+1 counter on each creature they control.

Kicker (You may pay an additional as you cast this spell.)

Flying

If Shalai's Acolyte was kicked, it enters the battlefield with two +1/+1 counters on it.

Delve (Each card you exile from your graveyard while casting this spell pays for .)

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

As Shapeshifter enters the battlefield, choose a number between 0 and 7.

At the beginning of your upkeep, you may choose a number between 0 and 7.

Shapeshifter's power is equal to the last chosen number and its toughness is equal to 7 minus that number.