Conjure a duplicate of each of up to two target nontoken creatures you control into your hand.

: Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Choose three target creature cards in your graveyard. Return two of them at random to the battlefield and put the other on the bottom of your library.

Sweep — Return any number of Swamps you control to their owner's hand. Target player discards a card for each Swamp returned this way.

Enchant creature

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

Enchanted creature has ", Put a -1/-1 counter on this creature: Untap this creature."

Until end of turn, you may cast target instant or sorcery card from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead. Exile Sins of the Past.

When Sinuous Benthisaur enters, look at the top X cards of your library, where X is the number of Caves you control plus the number of Cave cards in your graveyard. Put two of those cards into your hand and the rest on the bottom of your library in a random order.

: 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.)

When Siona, Captain of the Pyleas enters, look at the top seven cards of your library. You may reveal an Aura card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Whenever an Aura you control becomes attached to a creature you control, create a 1/1 white Human Soldier creature token.

At the beginning of each end step, each player discards their hand.

Enchant creature

When Sisay's Ingenuity enters, draw a card.

Enchanted creature has ": Target creature becomes the color of your choice until end of turn."

Sizzling Barrage deals 4 damage to target creature that blocked this turn.

As an additional cost to cast this spell, exile three creature cards from your graveyard.

Flying

You may cast Skaab Ruinator from your graveyard.

Changeling (This card is every creature type.)

: Regenerate Skeletal Changeling.

Each Skeleton you control has trample, attacks each combat if able, and gets +X/+0, where X is the number of other Skeletons you control.

At the beginning of your end step, create a tapped 1/1 black Skeleton creature token. If a creature died this turn, create two of those tokens instead.

Enchant creature

Enchanted creature attacks each combat if able.

When enchanted creature dies, return Skin Invasion to the battlefield transformed under your control.

Bloodrush — , Discard Skinbrand Goblin: Target attacking creature gets +2/+1 until end of turn.

: Choose one. Activate only once each turn.

• Until end of turn, Skinshifter becomes a Rhino with base power and toughness 4/4 and gains trample.

• Until end of turn, Skinshifter becomes a Bird with base power and toughness 2/2 and gains flying.

• Until end of turn, Skinshifter becomes a Plant with base power and toughness 0/8.

Living weapon (When this Equipment enters, create a 0/0 black Phyrexian Germ creature token, then attach this to it.)

Equipped creature gets +2/+2 and has flying.

Equip

: Monstrosity 4. (If this creature isn't monstrous, put four +1/+1 counters on it and it becomes monstrous.)

As long as Skittering Crustacean is monstrous, it has hexproof. (It can't be the target of spells or abilities your opponents control.)

When you cast a creature spell, sacrifice Skittering Horror.

When you cast a creature spell, sacrifice Skittering Monstrosity.

Flying

When you cast a creature spell, sacrifice Skittering Skirge.

Devoid (This card has no color.)

Skitterskin can't block.

: Regenerate Skitterskin. Activate only if you control another colorless creature.

Flying

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

Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.)

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

Deathtouch

When Skullwinder enters, return target card from your graveyard to your hand, then choose an opponent. That player returns a card from their graveyard to their hand.

Constellation — Whenever Skybind or another enchantment you control enters, exile target nonenchantment permanent. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Flying

When this creature transforms into Skyclave Invader, look at the top card of your library. If it's a land card, you may put it onto the battlefield. If you don't put the card onto the battlefield, put it into your hand.

Flying

Whenever you cast a Spirit or Arcane spell, you may gain control of target creature with that spell's mana value until end of turn.

Flying

When Skyline Despot enters, you become the monarch.

At the beginning of your upkeep, if you're the monarch, create a 5/5 red Dragon creature token with flying.

Flying

When Skyline Savior enters the battlefield, return a permanent you control to its owner's hand. If it's a non-Angel creature card, it perpetually gets +1/+1, gains flying, and becomes an Angel in addition to its other types.

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.)

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.)

When Skyshroud Sentinel enters, you may search your library for up to three cards named Skyshroud Sentinel, reveal them, put them into your hand, then shuffle.

Flying

Discard a card: Return Skywing Aven to its owner's hand.

Whenever Slagstone Refinery or another nontoken artifact you control is put into a graveyard from the battlefield or is put into exile from the battlefield, create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

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.

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

Just a second (As long as this spell is on the stack, players can't move permanents.)

Slaying Mantis enters by being thrown from a distance of at least three feet.

When Slaying Mantis enters, it fights each creature an opponent controls that it touched as it entered.

Change the text of target spell or permanent by replacing all instances of one color word with another. <I>(For example, you may change "target black spell" to "target blue spell." This effect lasts indefinitely.)</I>

Create a 0/0 green Ooze creature token with trample. Put X +1/+1 counters on it, where X is two plus the total number of cards you own in exile and in your graveyard that are Oozes or are named Slime Against Humanity.

A deck can have any number of cards named Slime Against Humanity.

Flash

Enchant creature

Enchanted creature gets -4/-0.

When Sling-Gang Lieutenant enters, create two 1/1 red Goblin creature tokens.

Sacrifice a Goblin: Target player loses 1 life and you gain 1 life.

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

Whenever Slinking Giant blocks or becomes blocked, it gets -3/-0 until end of turn.

Flying

, Sacrifice Slinking Skirge: Draw a card.

Exile target creature you own, then return it to the battlefield under your control. The Ring tempts you.

Slivers you control have flying and "Whenever you draw a card, this creature deals 1 damage to any target" and ": Draw a card."

, Sacrifice an artifact: Add an amount of equal to the sacrificed artifact's mana value. Spend this mana only to cast artifact spells or activate abilities of artifacts.

Whenever an enchantment you control enters, scry 1.

: Slumbering Keepguard gets +1/+1 until end of turn for each enchantment you control.