, Discard a creature card: Search your library for a creature card, reveal that card, put it into your hand, then shuffle.

Target creature gets +1/+0 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

: Draw two cards, then put a card from your hand on top of your library.

: Add .

, Tap an untapped creature you control: Add one mana of any color.

If you would planeswalk, instead look at the top two cards of your planar deck, put one on the bottom of your planar deck and the other on top, then planeswalk.

: Add .

Doctor's companion (You can have two commanders if the other is the Doctor.)

Destroy target creature an opponent controls. That player loses 3 life. Exile Suspended Sentence with three time counters on it.

Suspend 3— (Rather than cast this card from your hand, you may pay and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)

Defender

, : Target creature can't be blocked this turn.

Whenever Suspicious Nanny deals combat damage to a player, it reassembles target Contraption that player controls. (Gain control of it and move it onto one of your sprockets.)

Suspicious Stowaway can't be blocked.

Whenever Suspicious Stowaway deals combat damage to a player, draw a card, then discard a card.

Daybound (If a player casts no spells during their own turn, it becomes night next turn.)

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Damage that would reduce your life total to less than 1 reduces it to 1 instead.

When Sutina, Speaker of the Tajuru enters, search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Whenever Sutina attacks, you may return a land you control to its owner's hand. When you do, put a +1/+1 counter on target creature.

Flying

: Regenerate target creature.

, : Create a colorless snow artifact token named Icy Manalith with ": Add one mana of any color."

, : Look at the top four cards of your library. You may cast a spell from among them without paying its mana cost. Put the rest on the bottom of your library in a random order.

Svyelun of Sea and Sky has indestructible as long as you control at least two other Merfolk.

Whenever Svyelun attacks, draw a card.

Other Merfolk you control have ward . (Whenever another Merfolk you control becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

Svyelunite Temple enters tapped.

: Add .

, Sacrifice Svyelunite Temple: Add .

Raid — Swaggering Corsair enters with a +1/+1 counter on it if you attacked this turn.

Swallowing Plague deals X damage to target creature and you gain X life.

Flying

Whenever Swamp Mosquito attacks and isn't blocked, defending player gets a poison counter. (A player with ten or more poison counters loses the game.)

Flying

If a source would deal damage to Swans of Bryn Argoll, prevent that damage. The source's controller draws cards equal to the damage prevented this way.

Whenever you cast an instant or sorcery spell, you may copy that spell. You may choose new targets for the copy.

Flying

Whenever CARDNAME attacks, it gets +1/+0 until end of turn for each Locus you control.

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

Deathtouch

Whenever Swarm Saboteur deals combat damage to a player, conjure a card named Virus Beetle into your hand.

Devoid (This card has no color.)

Creatures you control get +2/+0 until end of turn. Colorless creatures you control also gain first strike until end of turn.

When Swarming Goblins enters, roll a d20.

1–9 | Create a 1/1 red Goblin creature token.

10–19 | Create two of those tokens.

20 | Create three of those tokens.

: Add .

: Regenerate target Insect, Rat, Spider, or Squirrel. (The next time it would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

When Swashbuckler Extraordinaire enters, create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Whenever you attack, you may sacrifice one or more Treasures. When you do, up to that many target creatures gain double strike until end of turn.

Enchant creature

Enchanted creature gets +2/+2 and has haste.

Vigilance

Whenever Swathcutter Giant attacks, it deals 1 damage to each creature defending player controls.

Each player shuffles their hand, graveyard, and all permanents they own into their library, then draws seven cards. Each player's life total becomes 7.

Return target creature to its owner's hand. If that creature is attacking, you may put it on top of its owner's library instead.

Target creature you control gains double strike until end of turn. (Then exile this card. You may cast the artifact later from exile.)

Flash

Cascade

Reach

When Sweet-Gum Recluse enters, put three +1/+1 counters on each of any number of target creatures that entered this turn.

Creatures you control get +2/+2 until end of turn.

Reinforce X— (, Discard this card: Put X +1/+1 counters on target creature.)

Swelter deals 2 damage to each of two target creatures.

Change the target of target spell with a single target.

Until end of turn, target creature gets +1/+0 and gains first strike and lifelink.

Prevent the next 2 damage that would be dealt to any target this turn.

Draw a card at the beginning of the next turn's upkeep.

Flash

Enchant creature or Vehicle

Enchanted permanent is a Vehicle artifact with crew 5 and it loses all other card types. (It's not a creature unless it's crewed.)

Counter all other spells. Draw a card for each spell countered this way.

Exile target nontoken creature. Return it to the battlefield under its owner's control at the beginning of the next end step.

Flying

When Swift Warkite enters, you may put a creature card with mana value 3 or less from your hand or graveyard onto the battlefield. That creature gains haste. Return it to your hand at the beginning of the next end step.

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control. It can attack and no matter when it came under your control.)

Equip (: Attach to target creature you control. Equip only as a sorcery.)

This land enters tapped.

When this land enters, you gain 1 life.

: Add or .

Whenever an opponent casts a spell from their hand, you may reveal the top card of your library. If it shares a card type with that spell, counter that spell and that opponent may cast the revealed card without paying its mana cost.

Visit — After the first combat phase this turn, there's an additional combat phase. At the beginning of that combat, untap all creatures that attacked this turn.

Lights — 4, 6

Threshold — Swirling Sandstorm deals 5 damage to each creature without flying if seven or more cards are in your graveyard.

Choose one or both —

• Put target creature on top of its owner's library.

• Return target creature to its owner's hand.

Flying, vigilance

Flying, haste

Whenever Swooping Pteranodon or another Dinosaur you control with flying enters, gain control of target creature an opponent controls until end of turn. Untap that creature. It gains flying and haste until end of turn. At the beginning of the next end step, target land deals 3 damage to that creature.

Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, this creature can't be blocked this turn."