Simoon deals 1 damage to each creature target opponent controls.

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.

When Sinister Concierge dies, you may exile it and put three time counters on it. If you do, exile up to one target creature and put three time counters on it. Each card exiled this way that doesn't have suspend gains suspend. (For each card with suspend, its owner removes a time counter from it at the beginning of their upkeep. When the last is removed, they may cast it without paying its mana cost. Those creature spells have haste.)

At the beginning of combat on your turn, each opponent loses 1 life and you gain 1 life.

, Pay 2 life, Sacrifice Sinister Monolith: Draw two cards. Activate only as a sorcery.

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

Return target spell or nonland permanent an opponent controls to its owner's hand.

Destroy target land.

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.

Look at the top two cards of target opponent's library. Exile one of them face down and put the other on the bottom of that library. You may play the exiled card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell.

Flashback

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

Devoid (This card has no color.)

Whenever a land an opponent controls enters, that player exiles the top two cards of their library and you draw two cards.

Flying

When Siren Lookout enters, it explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard.)

Flying

Inspired — Whenever Siren of the Silent Song becomes untapped, each opponent discards a card, then each opponent mills a card.

Flying

, Sacrifice Siren Stormtamer: Counter target spell or ability that targets you or a creature you control.

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

Sisterhood of Karn enters with a +1/+1 counter on it.

Paradox — Whenever you cast a spell from anywhere other than your hand, double the number of +1/+1 counters on Sisterhood of Karn.

: Add .

If you control a Plains, you may tap an untapped creature you control rather than pay this spell's mana cost.

All damage that would be dealt to target creature this turn is dealt to you instead.

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

Trample

When Skalla Wolf enters, look at the top five cards of your library. You may reveal a green card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Trample

Bloodrush — , Discard Skarrg Goliath: Target attacking creature gets +9/+9 and gains trample until end of turn.

When this creature enters, it deals 1 damage to any target.

Equipped creature has skulk. (It can't be blocked by creatures with greater power.)

Whenever equipped creature deals combat damage to a player, you may draw a card. If you do, discard a card.

Equip

, or , : Return target artifact creature card from your graveyard to your hand.

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."

Play with the top card of your library revealed.

As long as the top card of your library is an artifact or creature card, Skill Borrower has all activated abilities of that card. (If any of the abilities use that card's name, use this creature's name instead.)

Enchant creature

Enchanted creature attacks each combat if able.

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

Whenever Skirk Commando deals combat damage to a player, you may have it deal 2 damage to target creature that player controls.

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

Sacrifice a Goblin: Add .

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.

Trample, haste

When Skitterbeam Battalion enters, if you cast it, create two tokens that are copies of it.

//PRT-Prototype_Mech//

Prototype (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)

2/2

When you cast a creature spell, sacrifice Skittering Horror.

When you cast a creature spell, sacrifice Skittering Monstrosity.

When Skittering Surveyor enters, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Whenever a land card is put into your graveyard from anywhere, you gain 1 life.

: Mill a card. (Put the top card of your library into your graveyard.)

During your turn, Skophos Reaver gets +2/+0.

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Deathtouch

Hyperphase Threshers — Whenever an artifact you control enters, Skorpekh Destroyer gains first strike until end of turn.

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.)

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

: Regenerate Skull Collector.

: Add .

Sacrifice Skull of Ramos: Add .

When you cast this spell, copy it for each time you've cast your commander from the command zone this game.

Each opponent sacrifices a creature of their choice. Each opponent who can't loses half their life, rounded up.

: You gain 1 life.

, Discard a card: You gain 3 life.

Target player discards two cards at random unless that player has Skullscorch deal 4 damage to them.

Sky Diamond enters tapped.

: Add .

Flying

When Sky Swallower enters, target opponent gains control of all other permanents you control.

Flying

Flying

When Skyboon Evangelist enters, support 6. (Put a +1/+1 counter on each of up to six other target creatures.)

Whenever a creature with a counter on it attacks one of your opponents, that creature gains flying until end of turn.