Commander creatures you own have "The first time you would draw a card each turn, instead look at the top two cards of your library. Put one of them into your graveyard and the other back on top of your library. Then draw a card."

Flying

: Search your library for a Dragon permanent card and put it into your graveyard. If you do, Scion of the Ur-Dragon becomes a copy of that card until end of turn. Then shuffle.

Creatures named Paper Tiger can't attack or block.

Whenever Scorch Spitter attacks, it deals 1 damage to the player or planeswalker it's attacking.

As an additional cost to cast this spell, discard X land cards.

Destroy X target lands.

, Sacrifice a creature: Scorched Rusalka deals 1 damage to target player or planeswalker.

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

Scorching Lava deals 2 damage to any target. If this spell was kicked, that creature can't be regenerated this turn and if it would die this turn, exile it instead.

Scorching Shot deals 5 damage to target creature.

Cast this spell only during the declare attackers step and only if you've been attacked this step.

Scorching Winds deals 1 damage to each attacking creature.

Bloodrush — , Discard Scorchwalker: Target attacking creature gets +5/+1 until end of turn.

Foretell (During your turn, you may pay and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

: Add .

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

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

Scry 2, then draw a card.

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

Exile target creature card from your graveyard. Create X 1/1 white Bird creature tokens with flying, where X is the exiled card's toughness.

This land enters tapped.

When this land enters, you gain 1 life.

: Add or .

When Scourge of Fleets enters, return each creature your opponents control with toughness X or less to its owner's hand, where X is the number of Islands you control.

Flying

: Scourge of Kher Ridges deals 2 damage to each creature without flying.

: Scourge of Kher Ridges deals 6 damage to each other creature with flying.

At the beginning of your upkeep, you lose 2 life if you don't control an Ogre.

Enchant creature

As long as enchanted creature is red, it gets +1/+1 and has ": This creature gets +1/+0 until end of turn."

As long as enchanted creature is white, it gets +1/+1 and has lifelink. (Damage dealt by the creature also causes its controller to gain that much life.)

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.

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

Enchant creature

When Scourgemark enters, draw a card.

Enchanted creature gets +1/+0.

Scouring Sands deals 1 damage to each creature your opponents control. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

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

Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. If this spell was kicked, create two 1/1 white Soldier creature tokens.

The next creature card you play this turn can be played as though it had flash.

Draw a card.

Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, target player mills two cards. (They put the top two cards of their library into their graveyard.)

For each nonland permanent, choose a player at random. Then each player gains control of each permanent for which they were chosen. Untap those permanents.

Each player exiles all artifact cards from their graveyard, then sacrifices all artifacts they control, then puts all cards they exiled this way onto the battlefield.

, Sacrifice an artifact with mana value X: Return target artifact card with mana value less than X from your graveyard to the battlefield. It gains haste until end of turn.

Scrapdiver Serpent can't be blocked as long as defending player controls an artifact.

Scrapheap Scrounger can't block.

, Exile another creature card from your graveyard: Return Scrapheap Scrounger from your graveyard to the battlefield.

Whenever Scrappy Bruiser attacks, up to one target attacking creature gets +2/+0 and gains trample until end of turn. Return that creature to its owner's hand at end of combat. (Return it only if it's on the battlefield.)

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

Scrapskin Drake can block only creatures with flying.

When Scrapwork Mutt enters, you may discard a card. If you do, draw a card.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

As long as you control an artifact, Scrapyard Mongrel gets +2/+0 and has trample. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Scrapyard Salvo deals damage to target player or planeswalker equal to the number of artifact cards in your graveyard.

At the beginning of your upkeep, each player draws a card.

Whenever an opponent draws a card, that player loses 1 life.

Trample

Bio-Plasmic Scream — Whenever you cast a creature spell with mana value 5 or greater, Screamer-Killer deals 5 damage to any target.

Haste

Whenever Screaming Nemesis is dealt damage, it deals that much damage to any other target. If a player is dealt damage this way, they can't gain life for the rest of the game.

Flying

When Screaming Seahawk enters, you may search your library for a card named Screaming Seahawk, reveal it, put it into your hand, then shuffle.

Flying

Whenever you attack with one or more creatures, target player mills that many cards. (To mill a card, a player puts the top card of their library into their graveyard.)

: Put Screaming Swarm from your graveyard into your library second from the top.

Enchant creature

Enchanted creature gets -1/-1.

When enchanted creature dies, return Screams from Within from your graveyard to the battlefield.

Flying

At the beginning of your upkeep, you may pay . If you do, transform Screeching Bat.

Flying

When Screeching Drake enters, draw a card, then discard a card.

Flying

: Regenerate Screeching Harpy.

Flying, menace

Whenever Screeching Scorchbeast attacks, each player gets two rad counters.

Whenever one or more nonland cards are milled, you may create that many 2/2 black Zombie Mutant creature tokens. Do this only once each turn.

When Screeching Skaab enters, mill two cards.

: Exile the top card of target player's library. If it's a land card, you gain 1 life.

Landfall — Whenever a land you control enters, you may untap Scrib Nibblers.