At the beginning of your upkeep, each opponent loses 1 life. You gain life equal to the life lost this way.

You draw two cards and you lose 2 life.

Vigilance

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

When Su-Chi Cave Guard dies, add eight . Until end of turn, you don't lose this mana as steps and phases end.

Exile all nonland permanents target player controls. Return the exiled cards to the battlefield under their owner's control at the beginning of the next end step.

Sudden Impact deals damage to target player equal to the number of cards in that player's hand.

Mill four cards, then return a creature card and a land card from your graveyard to your hand.

Target creature gets +1/+3 until end of turn. Put a reach counter on it. Untap it.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Exchange control of target noncreature spell and target creature. Then the spell's controller may choose new targets for it.

Counter target spell and Suffocating Blast deals 3 damage to target creature.

Cast this spell only if you were dealt damage this turn by a red instant or sorcery spell.

Suffocation deals 4 damage to the controller of the last red instant or sorcery spell that dealt damage to you this turn.

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

Until end of turn, target creature or Vehicle becomes an artifact creature with base power and toughness 4/5.

Draw a card.

When Suleiman's Legacy enters, destroy all Djinns and Efreets. They can't be regenerated.

Whenever a Djinn or Efreet enters, destroy it. It can't be regenerated.

At the beginning of each player's upkeep, Sulfuric Vortex deals 2 damage to that player.

If a player would gain life, that player gains no life instead.

: Add .

: Add or . Sulfurous Springs deals 1 damage to you.

: Add , , or .

, , Sacrifice Sultai Banner: Draw a card.

When Sultai Emissary dies, manifest the top card of your library. (Put that card onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)

Enchant creature

Enchanted creature gets +2/+2.

Enchanted creature has deathtouch as long as you control a green or blue permanent. (Any amount of damage it deals to a creature is enough to destroy it.)

When Sultai Skullkeeper enters, mill two cards.

Exile all other spells and counter all abilities.

If a creature spell you cast this turn was countered by a spell or ability an opponent controlled, you may pay rather than pay this spell's mana cost.

Look at the top seven cards of your library. You may put a creature card from among them onto the battlefield. Put the rest on the bottom of your library in any order.

Vigilance

Whenever Sun Titan enters or attacks, you may return target permanent card with mana value 3 or less from your graveyard to the battlefield.

Domain — : Until end of turn, Sunbathing Rootwalla gets +1/+1 for each basic land type among lands you control. Activate only once each turn.

: Add one mana of any color.

Craft with one or more (, Exile this artifact, Exile one or more other permanents you control and/or cards from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)

Vigilance

Channel — , Discard Sunblade Samurai: Search your library for a basic Plains card, reveal it, put it into your hand, then shuffle. You gain 2 life.

Bolster X, where X is the number of cards in your hand. Each creature you control with a +1/+1 counter on it gains trample until end of turn. (To bolster X, choose a creature with the least toughness among creatures you control and put X +1/+1 counters on it.)

Destroy target land. Its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle. Creatures without flying can't block this turn.

Destroy target artifact or enchantment, then populate. (Create a token that's a copy of a creature token you control.)

When Sundering Titan enters or leaves the battlefield, choose a land of each basic land type, then destroy those lands.

, : End the turn. Activate only during your turn. (Exile all spells and abilities from the stack. Discard down to your maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)

Prevent the next 4 damage that would be dealt to any target this turn.

Cycling (, Discard this card: Draw a card.)

When you cycle Sunfire Balm, you may prevent the next 1 damage that would be dealt to any target this turn.

Whenever Sunfrill Imitator attacks, you may have it become a copy of another target Dinosaur you control, except its name is Sunfrill Imitator and it has this ability.

, : Add .

: Add .

, : Target creature gains double strike until end of turn.

Sunken Citadel enters tapped. As it enters, choose a color.

: Add one mana of the chosen color.

: Add two mana of the chosen color. Spend this mana only to activate abilities of land sources.

Enchant land

Enchanted land has ": Counter target spell unless its controller pays ."

During your turn, Sunlit Hoplite has first strike.

Sunlit Hoplite gets +1/+0 as long as you control an Elspeth planeswalker.

Trample, haste

If it's neither day nor night, it becomes day as Sunrise Cavalier enters.

Whenever day becomes night or night becomes day, put a +1/+1 counter on target creature you control.

Other Giant creatures you control get +2/+2 and have trample.

Defender (This creature can't attack.)

Green spells and blue spells you cast cost less to cast.

When Sunscourge Champion enters, you gain life equal to its power.

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 Human Wizard with no mana cost. Eternalize only as a sorcery.)

Tap two untapped artifacts and/or creatures you control: Sunshot Militia deals 1 damage to each opponent. Activate only as a sorcery.

As long as Sunspear Shikari is equipped, it has first strike and lifelink.

When Sunspire Gatekeepers enters, if you control two or more Gates, create a 2/2 white Knight creature token with vigilance.

Landfall — Whenever a land enters under your control, you may put a quest counter on Sunspring Expedition.

Remove three quest counters from Sunspring Expedition and sacrifice it: You gain 8 life.

Sunstrike Legionnaire doesn't untap during your untap step.

Whenever another creature enters, untap Sunstrike Legionnaire.

: Tap target creature with mana value 3 or less.

Conjure a card named Suntail Hawk into your hand. If you have fewer than seven cards in hand, repeat this process.

Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield tapped under its owner's control."

Flying

When Supply-Line Cranes enters, put a +1/+1 counter on target creature.

Activated abilities cost more to activate unless they're mana abilities.