For each of up to X target creatures, create a red Aura enchantment token named Smoke Blessing attached to that creature. Those tokens have enchant creature and "When enchanted creature dies, it deals 1 damage to its controller and you create a Treasure token."

Smoldering Spires enters the battlefield tapped.

When Smoldering Spires enters the battlefield, target creature can't block this turn.

: Add .

Flying

Whenever Smuggler's Copter attacks or blocks, you may draw a card. If you do, discard a card.

Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

Whenever an opponent casts a blue or black spell, you may create a 1/1 green Snake creature token.

You may exile a blue card from your hand rather than pay this spell's mana cost.

Return target creature to its owner's hand.

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Double strike

Whenever this creature mutates, it deals 4 damage to target creature or planeswalker an opponent controls and you gain 4 life.

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

Flash

Enrage — Whenever Snapping Sailback is dealt damage, put a +1/+1 counter on it. (It must survive the damage to get the counter.)

Devoid (This card has no color.)

: Add .

, : Draw a card.

Flying, haste

Reach

Whenever Snarespinner blocks a creature with flying, Snarespinner gets +2/+0 until end of turn.

Enchant creature

When Soaring Hope enters the battlefield, you gain 3 life.

Enchanted creature has flying.

: Put Soaring Hope on top of its owner's library.

Whenever you cast a Spirit or Arcane spell, target land becomes a 3/3 creature until end of turn. It's still a land.

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)

: Sokenzan Spellblade gets +X/+0 until end of turn, where X is the number of cards in your hand.

, Sacrifice Soldier Replica: It deals 3 damage to target attacking or blocking creature.

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

Whenever a player casts a black spell, you gain 1 life.

Shadow (This creature can block or be blocked by only creatures with shadow.)

Whenever Soltari Champion attacks, other creatures you control get +1/+1 until end of turn.

Shadow (This creature can block or be blocked by only creatures with shadow.)

Whenever Soltari Trooper attacks, it gets +1/+1 until end of turn.

Reach (This creature can block creatures with flying.)

Morbid — Somberwald Spider enters the battlefield with two +1/+1 counters on it if a creature died this turn.

Choose up to two target permanent cards in your graveyard. Roll a d20 and add the total mana value of those cards.

1–14 | Return those cards to your hand.

15+ | Return those cards to your hand. You gain life equal to their total mana value.

Flying

Whenever a player casts a nonblack spell, that player loses 1 life.

When Sophia, Dogged Detective enters the battlefield, create Tiny, a legendary 2/2 green Dog Detective creature token with trample.

, Sacrifice an artifact token: Put a +1/+1 counter on each Dog you control.

Whenever a Dog you control deals combat damage to a player, create a Food token, then investigate.

As Soporific Springs enters the battlefield, you may pay 3 life. If you don't, it enters the battlefield tapped.

: Add .

Flying

, Return a land you control to its owner's hand: Target creature you control gains shroud until end of turn. (It can't be the target of spells or abilities.)

+1: Target creature you control gains deathtouch and lifelink until end of turn. If it's a Vampire, put a +1/+1 counter on it.

+1: You may sacrifice a Vampire. When you do, Sorin, Imperious Bloodlord deals 3 damage to any target and you gain 3 life.

−3: You may put a Vampire creature card from your hand onto the battlefield.

: Choose two target blocking creatures an opponent controls. If each of those creatures could block all creatures that the other is blocking, remove both of them from combat. Each one then blocks all creatures the other was blocking.

Whenever Sorrow's Path becomes tapped, it deals 2 damage to you and each creature you control.

When Soul of Emancipation enters the battlefield, destroy up to three other target nonland permanents. For each of those permanents, its controller creates a 3/3 white Angel creature token with flying.

Flying

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Exile target nonland permanent. For as long as that card remains exiled, its owner may play it. A spell cast by an opponent this way costs more to cast.

, : Target creature becomes an enchantment and loses all abilities until a player casts a creature spell.

, Exile a creature card from your graveyard: You gain 1 life.

Landfall — Whenever a land enters the battlefield under your control, you may put a quest counter on Soul Stair Expedition.

Remove three quest counters from Soul Stair Expedition and sacrifice it: Return up to two target creature cards from your graveyard to your hand.

Soulcipher Board enters the battlefield with three omen counters on it.

, : Look at the top two cards of your library. Put one of them into your graveyard.

Whenever a creature card is put into your graveyard from anywhere, remove an omen counter from Soulcipher Board. Then if it has no omen counters on it, transform it.

Choose any number of target creatures, planeswalkers, and/or players. For each of them, exile the top card of your library, then Soulfire Eruption deals damage equal to that card's mana value to that permanent or player. You may play the exiled cards until the end of your next turn.

Enchant two creatures

Enchanted creatures each get +1/+1 and have hexproof.

When one of the enchanted creatures dies, destroy the other.

Soulsworn Spirit can't be blocked.

When Soulsworn Spirit enters the battlefield, detain target creature an opponent controls. (Until your next turn, that creature can't attack or block and its activated abilities can't be activated.)

Whenever you cast a spell with an odd mana value, convert Soundwave. If you do, create Ravage, a legendary 3/3 black Robot artifact creature token with menace and deathtouch.

Whenever you cast a spell with an even mana value, convert Soundwave. If you do, create Laserbeak, a legendary 2/2 blue Robot artifact creature token with flying and hexproof.

Flying

When Sower of Temptation enters the battlefield, gain control of target creature for as long as Sower of Temptation remains on the battlefield.

Space sculptor (Space Beleren divides the battlefield into alpha, beta, and gamma sectors. If a creature isn't assigned to a sector, its controller assigns it to one. Opponents assign first.)

+1: Creatures in each sector can be blocked this turn only by creatures in the same sector.

−1: Put a +1/+1 counter on each creature in the sector of your choice.

−5: Destroy all creatures in the sector of your choice.

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

Grav-cannon — When Space Marine Devastator enters the battlefield, destroy up to one target artifact or enchantment.

When Spara's Adjudicators enters the battlefield, target creature an opponent controls can't attack or block until your next turn.

, Exile Spara's Adjudicators from your hand: Target land gains ": Add , , or " until Spara's Adjudicators is cast from exile. You may cast Spara's Adjudicators for as long as it remains exiled.

(: Add , , or .)

Spara's Headquarters enters the battlefield tapped.

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

Creatures you control gain protection from non-Human creatures until end of turn.

You may have Spark Double enter the battlefield as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary.

When Spark Fiend enters the battlefield, roll two six-sided dice. If you rolled 2, 3, or 12, sacrifice Spark Fiend. If you rolled 7 or 11, don't roll dice for Spark Fiend during any of your following upkeeps. If you rolled any other total, note that total.

At the beginning of your upkeep, roll two six-sided dice. If you rolled 7, sacrifice Spark Fiend. If you roll the noted total, don't roll dice for Spark Fiend during any of your following upkeeps. Otherwise, do nothing.

Spark Jolt deals 1 damage to any target. Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Choose target creature. Exile the top card of your library. You may have Spark of Creativity deal damage to that creature equal to the exiled card's mana value. If you don't, you may play that card until end of turn.

When Spark Rupture enters the battlefield, draw a card.

Each planeswalker with one or more loyalty counters on it loses all abilities and is a creature with power and toughness each equal to the number of loyalty counters on it.