Exile Simian Spirit Guide from your hand: Add .

Enchant creature

When Singing Bell Strike enters, tap enchanted creature.

Enchanted creature doesn't untap during its controller's untap step.

Enchanted creature has ": Untap this creature."

: Sinuous Striker gets +1/-1 until end of turn.

Eternalize—, Discard a card. (, Discard a card, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie Snake Warrior with no mana cost. Eternalize only as a sorcery.)

, Sacrifice another creature or an artifact: For each opponent, you mill a card, then return that card from your graveyard to your hand unless that player pays 3 life. (To mill a card, put the top card of your library into your graveyard.)

Choose a Background (You can have a Background as a second commander.)

Flying

, Sacrifice a creature: Regenerate Skeletal Kathari.

Whenever Skirk Drill Sergeant or another Goblin dies, you may pay . If you do, reveal the top card of your library. If it's a Goblin permanent card, put it onto the battlefield. Otherwise, put it into your graveyard.

, , Discard a card: Create a 1/1 black Zombie Goblin creature token named Festering Goblin. It has "When Festering Goblin dies, target creature gets -1/-1 until end of turn."

Flash

You may cast colorless spells as though they had flash.

Whenever you cast a colorless spell, until end of turn, Skittering Cicada gains trample and gets +X/+X, where X is that spell's mana value.

: Skittering Heartstopper gains deathtouch until end of turn.

Create five 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this creature: Add ."

Devoid (This card has no color.)

Menace

Whenever you sacrifice a nontoken permanent, create a 0/1 colorless Eldrazi Spawn creature token with "Sacrifice this creature: Add ."

When Skittering Surveyor enters, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Flying, lifelink

: You and target opponent each draw a card.

Flying

Whenever you cast a noncreature spell, Sky Theater Strix gets +1/+0 until end of turn.

Flying

: Transform Skyclave Aerialist. Activate only as a sorcery. ( can be paid with either or 2 life.)

When Skyclave Cleric enters, you gain 2 life.

Flying

Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)

Lieutenant — As long as you control your commander, other creatures you control have melee.

Flying

At the beginning of combat on your turn, you may pay . When you do, put a +1/+1 counter on another target creature you control, and that creature gains flying until end of turn.

Each player draws X cards.

Forecast — , Reveal Skyscribing from your hand: Each player draws a card. (Activate only during your upkeep and only once each turn.)

Flying

Whenever Skystrike Officer attacks, create a 1/1 colorless Soldier artifact creature token.

Tap three untapped Soldiers you control: Draw a card.

Affinity for artifacts (This spell costs less to cast for each artifact you control.)

, Sacrifice an artifact: Slag Strider deals 1 damage to any target.

Whenever you sacrifice a permanent, Slaughter-Priest of Mogis gets +2/+0 until end of turn.

, Sacrifice another creature or an enchantment: Slaughter-Priest of Mogis gains first strike until end of turn.

Whenever Slavering Nulls deals combat damage to a player, if you control a Swamp, you may have that player discard a card.

When you unlock this door, manifest dread, then put a +1/+1 counter on that creature.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

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

When Slinn Voda, the Rising Deep enters, if it was kicked, return all creatures to their owners' hands except for Merfolk, Krakens, Leviathans, Octopuses, and Serpents.

Whenever Slith Strider becomes blocked, draw a card.

Whenever Slith Strider deals combat damage to a player, put a +1/+1 counter on it.

Whenever another artifact you control enters or leaves the battlefield, you may pay . If you do, target player loses 1 life and you gain 1 life.

Flying

Slumbering Dragon can't attack or block unless it has five or more +1/+1 counters on it.

Whenever a creature attacks you or a planeswalker you control, put a +1/+1 counter on Slumbering Dragon.

, Discard a Spirit or Arcane card: Slumbering Tora becomes an X/X Cat artifact creature until end of turn, where X is the discarded card's mana value.

Whenever Smogsteed Rider attacks, each other attacking creature gains fear until end of turn. (They can't be blocked except by artifact creatures and/or black creatures.)

Wither (This deals damage to creatures in the form of -1/-1 counters.)

When Smoldering Efreet dies, it deals 2 damage to you.

(: Add or .)

Smoldering Marsh enters tapped unless you control two or more basic lands.

Smoldering Stagecoach's power is equal to the number of instant and sorcery cards in your graveyard.

Whenever Smoldering Stagecoach attacks, the next instant spell and the next sorcery spell you cast this turn each have cascade.

Crew 2

When Smoldering Werewolf enters, it deals 1 damage to each of up to two target creatures.

: Transform Smoldering Werewolf.

Whenever an opponent draws a card, that player may pay . If the player doesn't, you create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Flying

When Snaremaster Sprite enters, you may pay . When you do, tap target creature an opponent controls and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Trample

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Enchant creature

When Soaring Hope enters, you gain 3 life.

Enchanted creature has flying.

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

Flying

When Soaring Sandwing enters, you gain 3 life.

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

Flying

When Soaring Show-Off enters, each player draws a card.

: Add .

Destroy target artifact or enchantment. You gain 4 life.

Strive — This spell costs more to cast for each target beyond the first.

Choose any number of target creatures. Double the number of +1/+1 counters on each of them.

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

: Soltari Crusader gets +1/+0 until end of turn.

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

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

Soltari Lancer has first strike as long as it's attacking.

Protection from red

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

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

Whenever Soltari Visionary deals damage to a player, destroy target enchantment that player controls.