At the beginning of your upkeep, sacrifice Sacred Mesa unless you sacrifice a Pegasus.

: Create a 1/1 white Pegasus creature token with flying.

(: Add or .)

Sacred Peaks enters tapped.

Discard any number of cards. Creatures you control get +0/+1 until end of turn for each card discarded this way.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

A person outside the game chooses an attacking or blocking creature target opponent controls. That player sacrifices that creature.

When Saddleback Lagac enters, support 2. (Put a +1/+1 counter on each of up to two other target creatures.)

When Sadistic Augermage dies, each player puts a card from their hand on top of their library.

Sacrifice a creature: Target player discards two cards. Activate only as a sorcery.

Kicker (You may pay an additional as you cast this spell.)

Search target player's library for up to three cards, exile them, then that player shuffles. If this spell was kicked, instead search that player's library for up to fifteen cards, exile them, then that player shuffles.

Menace

At the beginning of your end step, if you have the initiative, create a Treasure token. Create three of those tokens instead if you've completed a dungeon.

Choose a Background (You can have a Background as a second commander.)

Prevent all damage that would be dealt to you and creatures you control this turn.

Whenever you cast a green spell, Safehold Duo gets +1/+1 until end of turn.

Whenever you cast a white spell, Safehold Duo gains vigilance until end of turn.

, : Safehold Sentry gets +0/+2 until end of turn. ( is the untap symbol.)

Sacrifice Saffi Eriksdotter: When target creature is put into your graveyard this turn, return that card to the battlefield.

Sage of Ancient Lore's power and toughness are each equal to the number of cards in your hand.

When Sage of Ancient Lore enters, draw a card.

At the beginning of each upkeep, if no spells were cast last turn, transform Sage of Ancient Lore.

When Sage of Epityr enters, look at the top four cards of your library, then put them back in any order.

Heroic — Whenever you cast a spell that targets Sage of Hours, put a +1/+1 counter on it.

Remove all +1/+1 counters from Sage of Hours: For each five counters removed this way, take an extra turn after this one.

Constellation — Whenever an enchantment you control enters, target player mills two cards.

Flying

Spells you cast from anywhere other than your hand cost less to cast.

Foretell (During your turn, you may pay and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Flying

Whenever you cast a noncreature spell, creatures you control gain lifelink until end of turn.

: Add . Spend this mana only to cast a colorless spell or to activate an ability.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Whenever Sage-Eye Avengers attacks, you may return target creature to its owner's hand if its power is less than Sage-Eye Avengers's power.

Counter target spell unless its controller pays . If you control a Wizard, draw a card.

If you would draw a card, instead reveal the top three cards of your library. Put all creature cards revealed this way into your hand and the rest on the bottom of your library in any order.

Whenever another blue creature you control enters, target player mills two cards.

Destroy target creature with flying. Sagittars' Volley deals 1 damage to each creature with flying your opponents control.

Trample, hexproof

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

+1: Scry 1. You may tap an untapped artifact you control. If you do, draw a card.

−2: Create two 1/1 colorless Thopter artifact creature tokens with flying. They gain haste until end of turn.

−4: You get an emblem with "Artifact creatures you control get +1/+1" and "Artifact spells you cast cost less to cast."

+1: Create a 1/1 colorless Servo artifact creature token.

+1: The next spell you cast this turn costs less to cast for each artifact you control as you cast it.

−7: For each artifact you control, create a token that's a copy of it. Those tokens gain haste. Exile those tokens at the beginning of the next end step.

Saheeli, the Gifted can be your commander.

Choose one or both —

• Create a token that's a copy of target artifact.

• Create a token that's a copy of target creature, except it's an artifact in addition to its other types.

When Saheeli's Lattice enters, you may discard a card. If you do, draw two cards.

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

Equipped creature gets +1/+1.

Whenever a creature you control enters, you may attach Sai of the Shinobi to it.

Equip

Flash

Backup 1 (When this creature enters, put a +1/+1 counter on target creature. If that's another creature, it gains the following ability until end of turn.)

Hexproof

Channel — , Discard Saiba Trespassers: Tap up to two target creatures you don't control. Those creatures don't untap during their controller's next untap step.

Will of the council — Starting with you, each player votes for return or embark. If return gets more votes, each player returns up to two cards from their graveyard to their hand, then you exile Sail into the West. If embark gets more votes or the vote is tied, each player may discard their hand and draw seven cards.

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

Whenever Saint Traft and Rem Karolus becomes tapped, create a 1/1 red Human creature token if this is the first time this ability has resolved this turn. If it's the second time, create a 1/1 blue Spirit creature token with flying. If it's the third time, create a 4/4 white Angel creature token with flying.

Whenever you cast a spell that has convoke, untap Saint Traft and Rem Karolus.

You may have Sakashima the Impostor enter as a copy of any creature on the battlefield, except its name is Sakashima the Impostor, it's legendary in addition to its other types, and it has ": Return this creature to its owner's hand at the beginning of the next end step."

Flash

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

You may have Sakashima's Protege enter as a copy of any permanent that entered this turn.

Choose one. If you control a commander as you cast this spell, you may choose both instead.

• Target opponent chooses a creature they control. You gain control of it.

• Choose a creature you control. Each other creature you control becomes a copy of that creature until end of turn.

Sacrifice Sakura-Tribe Elder: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

At the beginning of your upkeep, add . Until end of turn, you don't lose this mana as steps and phases end.

You may cast creature spells as though they had flash.

Whenever one or more other creatures you control leave the battlefield, investigate. This ability triggers only once each turn. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Salt Marsh enters tapped.

: Add or .

Outlast (, : Put a +1/+1 counter on this creature. Outlast only as a sorcery.)

Destroy target nonwhite permanent.

: Target creature gets -2/-0 until end of turn.

Whenever Saltwater Stalwart deals damage to an opponent, target player draws a card.

Devoid (This card has no color.)

Ingest (Whenever this creature deals combat damage to a player, that player exiles the top card of their library.)

When Salvage Drone dies, you may draw a card. If you do, discard a card.

Whenever Salvage Scuttler attacks, return an artifact you control to its owner's hand.