Defender

, Tap an untapped creature you control: Add one mana of any color.

Whenever a land you control is tapped for mana, add an additional one mana of any type that land produced for each other land you control with the same name as it.

Cast this spell only during your turn and only during combat.

Choose one —

• Creatures you control gain double strike until end of turn.

• Untap all creatures you control. After this phase, there is an additional combat phase.

Entwine (Choose both if you pay the entwine cost.)

Savage Lands enters tapped.

: Add , , or .

As an additional cost to cast this spell, sacrifice a creature with power 4 or greater.

Search your library for a Dinosaur creature card, put it onto the battlefield, then shuffle. It gains indestructible until your next turn.

Flying

Whenever Savage Ventmaw attacks, add . Until end of turn, you don't lose this mana as steps and phases end.

(: Add , , or .)

Savai Triome enters tapped.

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

Gift a tapped Fish (You may promise an opponent a gift as you cast this spell. If you do, they create a tapped 1/1 blue Fish creature token before its other effects.)

As an additional cost to cast this spell, discard a card.

Target player draws two cards. If the gift was promised, target creature you control gets +2/+0 until end of turn.

Put a +1/+1 counter on up to one target creature. You gain 2 life. You may play an additional land this turn.

Draw a card.

As an additional cost to cast this spell, you may reveal a Dragon card from your hand.

Scaleguard Sentinels enters with a +1/+1 counter on it if you revealed a Dragon card or controlled a Dragon as you cast this spell.

Reach

: Add one mana of any color. Activate only once each turn.

(: Add or .)

Scattered Groves enters tapped.

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

: Add .

, , Sacrifice a Desert: Exile all graveyards.

Scene of the Crime enters tapped.

: Add .

, Tap an untapped creature you control: Add one mana of any color.

, Sacrifice Scene of the Crime: Draw a card.

: Add .

, : Add one mana of any color.

Devoid (This card has no color.)

When Scion Summoner enters, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this creature: Add ." ( represents colorless mana.)

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

When Scorch Rider enters, if it was kicked, it gains haste until end of turn.

If Scorched Ruins would enter, sacrifice two untapped lands instead. If you do, put Scorched Ruins onto the battlefield. If you don't, put it into its owner's graveyard.

: Add .

: Add .

At the beginning of each upkeep, if no spells were cast last turn, transform Scorned Villager.

Flying

Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.)

Whenever Scourge of the Throne attacks for the first time each turn, if it's attacking the player with the most life or tied for most life, untap all attacking creatures. After this phase, there is an additional combat phase.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Gain control of up to one target artifact for as long as you control Scroll of Isildur. The Ring tempts you.

II — Tap up to two target creatures. Put a stun counter on each of them.

III — Draw a card for each tapped creature target opponent controls.

: Add .

, : Look at the top card of your library. If that card is snow, you may reveal it and put it into your hand. ( can be paid with one mana from a snow source.)

Flash

Vigilance

When Scuttling Sentinel enters, put a +1/+1 counter on another target creature you control. Until end of turn, that creature becomes a blue Crab in addition to its other types and gains hexproof. (It can't be the target of spells or abilities your opponents control.)

: Add . ( represents colorless mana.)

, : Draw a card. Activate only if you have no cards in hand.

Sea of Clouds enters tapped unless you have two or more opponents.

: Add or .

Seachrome Coast enters tapped unless you control two or fewer other lands.

: Add or .

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.

Morbid — At the beginning of each end step, if a creature died this turn, put a soul counter on Séance Board.

: Add X mana of any one color, where X is the number of soul counters on Séance Board. Spend this mana only to cast instant, sorcery, Demon, and Spirit spells.

: Add .

Seaside Citadel enters tapped.

: Add , , or .

Add one mana of any color. (Then exile this card. You may cast the creature later from exile.)

As Secluded Courtyard enters, choose a creature type.

: Add .

: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type or activate an ability of a creature source of the chosen type.

Secluded Steppe enters tapped.

: Add .

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

: Add .

: Add one mana of any color. Spend this mana only to cast a spell that shares a watermark with Secret Base.

Squad (As an additional cost to cast this spell, you may pay any number of times. When this creature enters, create that many tokens that are copies of it.)

Vigilance

Whenever a creature token you control enters, put a +1/+1 counter on it.

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

Target creature gets +3/+0 until end of turn.

Add .

Untap target creature. After this main phase, there is an additional combat phase followed by an additional main phase.

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

Sejiri Glacier enters tapped.

: Add .

Sejiri Steppe enters tapped.

When Sejiri Steppe enters, target creature you control gains protection from the color of your choice until end of turn.

: Add .

Selesnya Guildgate enters tapped.

: Add or .

: Add or .

, , Sacrifice Selesnya Locket: Draw two cards.

Selesnya Sanctuary enters tapped.

When Selesnya Sanctuary enters, return a land you control to its owner's hand.

: Add .

Vigilance

Whenever you cast a creature spell, create a 1/1 red Mercenary creature token with ": Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery."

: Choose a color. Add one mana of that color for each different power among creatures you control.

Whenever another creature enters, its controller may draw a card if its power is greater than each other creature's power.

, : Add X mana in any combination of colors, where X is the greatest power among creatures you control.

Artifacts you control are Clues in addition to their other types and have ", Sacrifice this artifact: Draw a card."

Whenever you sacrifice a Clue, target creature can't be blocked this turn.

Flash

Enchant creature

Enchanted creature gets +1/+2 and has vigilance.

Addendum — When Sentinel's Mark enters, if you cast it during your main phase, enchanted creature gains lifelink until end of turn.

When Seraph Sanctuary enters, you gain 1 life.

Whenever an Angel you control enters, you gain 1 life.

: Add .

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

When Sergeant-at-Arms enters, if it was kicked, create two 1/1 white Soldier creature tokens.

: Add .

Any time you could mulligan and Serum Powder is in your hand, you may exile all the cards from your hand, then draw that many cards. (You can do this in addition to taking mulligans.)