Menace

At the beginning of your upkeep, reveal the top card of your library. Any opponent may have you put that card into your graveyard. If a player does, Sin Prodder deals damage to that player equal to that card's mana value. Otherwise, put that card into your hand.

Flash

When Singer of Swift Rivers enters, put a shield counter on another target creature you control. (If it would be dealt damage or destroyed, remove a shield counter from it instead.)

You may cast Merfolk spells as though they had flash.

If an opponent controls a Mountain and you control a Plains, you may cast this spell without paying its mana cost.

Prevent all damage that would be dealt this turn to creatures you control.

Choose target creature. Roll a six-sided die.

1 — It has base toughness 1 until end of turn.

2 — Put two -1/-1 counters on it.

3 — Six-Sided Die deals 3 damage to it and you gain 3 life.

4 — It gets -4/-4 until end of turn.

5 — Destroy it.

6 — Exile it.

Sizzle deals 3 damage to each opponent.

Bloodthirst 3 (If an opponent was dealt damage this turn, this creature enters with three +1/+1 counters on it.)

Flying

: Return Skarrgan Firebird from your graveyard to your hand. Activate only if an opponent was dealt damage this turn.

Bloodthirst 1 (If an opponent was dealt damage this turn, this creature enters with a +1/+1 counter on it.)

Creatures with power less than Skarrgan Pit-Skulk's power can't block it.

When Skeleton Archer enters, it deals 1 damage to any target.

Skeletonize deals 3 damage to target creature. When a creature dealt damage this way dies this turn, create a 1/1 black Skeleton creature token with ": Regenerate this creature."

Spectacle (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.)

Skewer the Critics deals 3 damage to any target.

Protection from red

Tap five untapped Goblins you control: Skirk Fire Marshal deals 10 damage to each creature and each player.

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

When Skirk Volcanist is turned face up, it deals 3 damage divided as you choose among one, two, or three target creatures.

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.

: Skophos Maze-Warden gets +1/-1 until end of turn.

Whenever another creature becomes the target of an ability of a land you control named Labyrinth of Skophos, you may have Skophos Maze-Warden fight that creature. (Each deals damage equal to its power to the other.)

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)

Skrelv, Defector Mite can't block.

, : Choose a color. Another target creature you control gains toxic 1 and hexproof from that color until end of turn. It can't be blocked by creatures of that color this turn. ( can be paid with either or 2 life.)

Skull Rend deals 2 damage to each opponent. Those players each discard two cards at random.

At the beginning of each opponent's upkeep, Skullcage deals 2 damage to that player unless they have exactly three or exactly four cards in hand.

Whenever Skullknocker Ogre deals damage to an opponent, that player discards a card at random. If the player does, they draw a card.

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever Skullsnatcher deals combat damage to a player, exile up to two target cards from that player's graveyard.

Skyreaping deals damage to each creature with flying equal to your devotion to green. (Each in the mana costs of permanents you control counts toward your devotion to green.)

Skyshroud Forest enters tapped.

: Add .

: Add or . Skyshroud Forest deals 1 damage to you.

Flying

Double strike (This creature deals both first-strike and regular combat damage.)

Reach (This creature can block creatures with flying.)

: Skyway Sniper deals 1 damage to target creature with flying.

Choose one —

• Slagstorm deals 3 damage to each creature.

• Slagstorm deals 3 damage to each player.

Target creature gets +3/+0 and gains first strike until end of turn. (It deals combat damage before creatures without first strike.)

Toxic 2 (Players dealt combat damage by this creature also get two poison counters.)

Whenever another creature you control with toxic attacks, it gets +1/+1 until end of turn.

Slaying Fire deals 3 damage to any target.

Adamant — If at least three red mana was spent to cast this spell, it deals 4 damage instead.

Enchant creature

Enchanted creature has fear. (It can't be blocked except by artifact creatures and/or black creatures.)

Whenever enchanted creature deals combat damage to an opponent, you may draw a card.

Living metal (During your turn, this Vehicle is also a creature.)

First strike, haste

Whenever Slicer deals combat damage to a player, convert it at end of combat.

Choose one —

• Destroy target artifact.

• Roll a six-sided die. When you do, Slight Malfunction deals 1 damage to each of up to X target creatures, where X is the result.

, : Slingshot Goblin deals 2 damage to target blue creature.

Flying

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

Haste

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

Whenever Slith Strider becomes blocked, draw a card.

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

Devoid (This card has no color.)

Ingest (Whenever this creature deals combat damage to a player, that player exiles the top card of their library.)

: Sludge Crawler gets +1/+1 until end of turn.

Whenever Sly Spy deals combat damage to a player, that player reveals their hand. You choose a card from it with the longest name. That player discards that card.

Whenever Sly Spy deals combat damage to a player, that player loses a finger until Sly Spy leaves the battlefield. (The finger is chosen by its owner and can't roll dice or touch cards.)

Whenever Sly Spy deals combat damage to a player, that player reveals the top card of their library. Put that card into your hand and you lose life equal to its mana value.

Choose one —

• Destroy target artifact.

• Destroy target creature with defender.

• Smash to Dust deals 1 damage to each creature your opponents control.

Smite the Deathless deals 3 damage to target creature. That creature loses indestructible until end of turn. If that creature would die this turn, exile it instead.

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."

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

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

: Transform Smoldering Werewolf.

You may discard a Forest card rather than pay this spell's mana cost.

Prevent all combat damage that would be dealt by unblocked creatures this turn.

Enchant creature

Enchanted creature gets +1/+1 and has "Whenever this creature deals damage to an opponent, you may draw a card."

Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Flash

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

Defender (This creature can't attack.)

: Snow Fortress gets +1/+0 until end of turn.

: Snow Fortress gets +0/+1 until end of turn.

: Snow Fortress deals 1 damage to target creature without flying that's attacking you.

Solar Blast deals 3 damage to any target.

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

When you cycle Solar Blast, you may have it deal 1 damage to any target.

, : Prevent the next 2 damage that would be dealt to target creature this turn. Target opponent may draw a card.

Solitary Camel has lifelink as long as you control a Desert or there is a Desert card in your graveyard. (Damage dealt by this creature also causes you to gain that much life.)