Flying

Tribute 2 (As this creature enters the battlefield, an opponent of your choice may put two +1/+1 counters on it.)

When Shrike Harpy enters the battlefield, if tribute wasn't paid, target opponent sacrifices a creature.

When Sibsig Host enters the battlefield, each player mills three cards.

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

When Sibsig Muckdraggers enters the battlefield, return target creature card from your graveyard to your hand.

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

Whenever Sidisi, Brood Tyrant enters the battlefield or attacks, mill three cards.

Whenever one or more creature cards are put into your graveyard from your library, create a 2/2 black Zombie creature token.

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

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

Tap three untapped creatures you control: Each opponent loses 1 life.

Sightless Ghoul can't block.

Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

: Destroy target blocking creature at end of combat.

Flying

Whenever Silent Specter deals combat damage to a player, that player discards two cards.

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

Creatures with power greater than Silumgar Assassin's power can't block it.

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.)

When Silumgar Assassin is turned face up, destroy target creature with power 3 or less an opponent controls.

Flying

Exploit (When this creature enters the battlefield, you may sacrifice a creature.)

Whenever another creature you control dies, put a +1/+1 counter on Silumgar Scavenger. It gains haste until end of turn if it exploited that creature.

Partner with Trynn, Champion of Freedom (When this creature enters the battlefield, target player may put Trynn into their hand from their library, then shuffle.)

Menace

Sacrifice a Human: Put a +1/+1 counter on Silvar, Devourer of the Free. It gains indestructible until end of turn.

Magecraft — Whenever you cast or copy an instant or sorcery spell, target creature gets +1/+0 until end of turn.

As Silverquill Silencer enters the battlefield, choose a nonland card name.

Whenever an opponent casts a spell with the chosen name, they lose 3 life and you draw a card.

Sima Yi, Wei Field Marshal's power is equal to the number of Swamps you control.

When Singe-Mind Ogre enters the battlefield, target player reveals a card at random from their hand, then loses life equal to that card's mana value.

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

As long as Sinuous Vermin is monstrous, it has menace. (It can't be blocked except by two or more creatures.)

Devoid (This card has no color.)

Whenever a land enters the battlefield under an opponent's control, that player exiles the top two cards of their library and you draw two cards.

Medicus Ministorum — When Sister Hospitaller enters the battlefield, return target creature card from your graveyard to the battlefield. You gain life equal to its mana value.

: Target creature blocks Sisters of Stone Death this turn if able.

: Exile target creature blocking or blocked by Sisters of Stone Death.

: Put a creature card exiled with Sisters of Stone Death onto the battlefield under your control.

, 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.)

: Regenerate Skeletal Wurm.

Each other creature you control that's a Skeleton or Pirate gets +1/+1.

Whenever one or more creature cards leave your graveyard, create a 2/2 black Skeleton Pirate creature token. (This ability triggers only from the battlefield.)

: Return Skeleton Crew from your graveyard to the battlefield tapped.

When you control no Islands, sacrifice Skeleton Ship.

: Put a -1/-1 counter on target creature.

When Skemfar Shadowsage enters the battlefield, choose one —

• Each opponent loses X life, where X is the greatest number of creatures you control that have a creature type in common.

• You gain X life, where X is the greatest number of creatures you control that have a creature type in common.

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

When Skinthinner is turned face up, destroy target nonblack creature. It can't be regenerated.

, , 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."

Morbid — , Tap two untapped creatures you control: Create a 5/5 black Demon creature token with flying. Activate only if a creature died this turn.

Flying

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

: Skithiryx, the Blight Dragon gains haste until end of turn.

: Regenerate Skithiryx.

When you cast a creature spell, sacrifice Skittering Horror.

Flying

When you cast a creature spell, sacrifice Skittering Skirge.

Deathtouch

Hyperphase Threshers — Whenever an artifact enters the battlefield under your control, Skorpekh Destroyer gains first strike until end of turn.

When Skulking Fugitive becomes the target of a spell or ability, sacrifice it.

When Skulking Killer enters the battlefield, target creature an opponent controls gets -2/-2 until end of turn if that opponent controls no other creatures.

At the beginning of your upkeep, return a black creature you control to its owner's hand.

: Regenerate Skull Collector.

Flying

When Skull Saucer enters the battlefield, destroy target creature and put your head on the table. Sacrifice Skull Saucer when your head stops touching the table.

Haste

Whenever Skullbriar, the Walking Grave deals combat damage to a player, put a +1/+1 counter on it.

Counters remain on Skullbriar as it moves to any zone other than a player's hand or library.

Whenever you cast a Spirit or Arcane spell, you may put a ki counter on Skullmane Baku.

, , Remove X ki counters from Skullmane Baku: Target creature gets -X/-X until end of turn.

When Skullslither Worm enters the battlefield, each opponent discards a card. For each opponent who can't, put two +1/+1 counters on Skullslither Worm.

Devoid (This card has no color.)

Flying

Whenever you cast a colorless spell, Sky Scourer gets +1/+0 until end of turn.

, Sacrifice another creature: Put a +1/+1 counter on Skyclave Shadowcat.

Whenever a creature you control with a +1/+1 counter on it dies, draw a card.

Flying

When Skymarch Bloodletter enters the battlefield, target opponent loses 1 life and you gain 1 life.

Whenever Slate Street Ruffian becomes blocked, defending player discards a card.

When Slaughter Specialist enters the battlefield, each opponent creates a 1/1 white Human creature token.

Whenever a creature an opponent controls dies, put a +1/+1 counter on Slaughter Specialist.

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 Slimefoot and Squee enters the battlefield or attacks, create a 1/1 green Saproling creature token.

, Sacrifice a Saproling: Return Slimefoot and Squee and up to one other target creature card from your graveyard to the battlefield. Activate only as a sorcery.

At the beginning of combat on your turn, target creature you control with power 2 or less gets +1/+0 and gains deathtouch until end of turn.