{1}{R}, {T}, Discard a card: Draw a card. Scalding Crucible deals 1 damage to each opponent.
Spellcharge 5

As an additional cost to cast this spell, exile X cards from your graveyard.
You draw X cards and gain X life, then each opponent loses X life.

Players can't gain life.
Whenever a player casts a spell, Scathing Remarks deals 1 damage to that player for each of that spell's colors.

Choose one —
• Destroy target artifact.
• Destroy target enchantment.
• Exile target card from a graveyard.

When Scattering Swine deals combat damage to a player, you may return a permanent you control to its owner's hand. If you do, that player loses 3 life unless they discard a card that shares a type with the returned permanent.

{3}, {T}, Sacrifice Scorching Illuminator: Return target instant or sorcery card from your graveyard to your hand. Add one mana of any color.

Scry 2, then draw a card.
Flashback {4}{U}

Trample
When Scourge of Capitalism enters, it fights target creature with the greatest power or tied for the greatest power among creatures you don't control. Excess damage is dealt to that creature's controller instead.

Double target creature's power and toughness until end of turn.
Flashback {1}{G}

Haste
Solidarity

Enchant creature
Enchanted creature gets -1/-1.
Sacrifice an artifact: Destroy enchanted creature.

Whenever one or more creatures you control deal combat damage to a player, you may draw that many cards. If you do, discard a card.
Exile two creature cards from your graveyard: Scrapyard Mecha becomes an artifact creature until end of turn. Activate only as a sorcery.
Crew 2

Flying
Creatures you control with base power 1 or less get +1/+0.

When Scruffy Rascal enters, mill three cards. You may put a permanent card from among the cards milled this way into your hand. If you don't, create a Treasure token.

Scuttle Tank enters with a defender counter on it.

Surface {U}. Scuttling Cicada surfaces transformed.

When Sea Breeze enters, return up to one target creature to its owner's hand, then surveil 1.

When Seafloor Scavenger enters or deals combat damage to a player, you may return target exiled card with surface you own to your hand.

Look at the top two cards of your library. Put one into your hand and the other into your graveyard.
Surface {2}{U}

Flash
When Seal Away enters, exile target tapped creature an opponent controls until Seal Away leaves the battlefield.

At the beginning of each end step, create a 2/2 white and blue Seal Orb creature token if you activated two or more nonmana abilities this turn.
{W}{U}: Scry 1. You gain 1 life.

Target player reveals their hand. You may choose a nonland card from it. If you do, that player discards that card. Otherwise, draw a card.

Scry 3, then reveal the top card of your library. If it's a creature card, put it into your hand.

This spell costs {2} less to cast if you've activated a nonmana ability this turn.
Searing Grace deals 3 damage to any target.

Vigilance
When Seasoned Spymaster enters, teach target creature vigilance.