Flash

Enchant creature

Enchanted creature gets +0/+2 as long as it's a Pirate. Otherwise, it gets -2/-0.

Sea of Clouds enters tapped unless you have two or more opponents.

: Add or .

Sea Serpent can't attack unless defending player controls an Island.

When you control no Islands, sacrifice Sea Serpent.

: Sea Spirit gets +1/+0 until end of turn.

Seachrome Coast enters tapped unless you control two or fewer other lands.

: Add or .

Blue legendary creatures you control have "bands with other legendary creatures." (Any legendary creatures can attack in a band as long as at least one has "bands with other legendary creatures." Bands are blocked as a group. If at least two legendary creatures you control, one of which has "bands with other legendary creatures," are blocking or being blocked by the same creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Seafloor Debris enters tapped.

: Add .

, Sacrifice Seafloor Debris: Add one mana of any color.

: Seafloor Stalker gets +1/+0 until end of turn and can't be blocked this turn. This ability costs less to activate for each creature in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

Flash

When Seal Away enters, exile target tapped creature an opponent controls until Seal Away leaves the battlefield.

Sacrifice Seal of Cleansing: Destroy target artifact or enchantment.

Sacrifice Seal of Fire: It deals 2 damage to any target.

Sacrifice Seal of Removal: Return target creature to its owner's hand.

As Seal of the Guildpact enters, choose two colors.

Each spell you cast costs less to cast for each of the chosen colors it is.

Sealock Monster can't attack unless defending player controls an Island.

: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)

When Sealock Monster becomes monstrous, target land becomes an Island in addition to its other types.

Morbid — At the beginning of each end step, if a creature died this turn, put a soul counter on Séance Board.

: Add X mana of any one color, where X is the number of soul counters on Séance Board. Spend this mana only to cast instant, sorcery, Demon, and Spirit spells.

At the beginning of your upkeep, surveil 1. Then if you have seven or more cards in your graveyard, you may transform Search for Azcanta. (Look at the top card of your library. You may put that card into your graveyard.)

Search your library for a snow permanent card, a legendary card, or a Saga card, reveal it, put it into your hand, then shuffle. You gain 1 life for each spent to cast this spell. ( is mana from a snow source.)

Search your library for a basic land card, put it onto the battlefield, then shuffle.

Suspend 2— (Rather than cast this card from your hand, you may pay and exile it with two 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.)

When Search the City enters, exile the top five cards of your library.

Whenever you play a card with the same name as one of the exiled cards, you may put one of those cards with that name into its owner's hand. Then if there are no cards exiled with Search the City, sacrifice it. If you do, take an extra turn after this one.

Target player reveals their hand. You gain life equal to the number of cards in that player's hand.

Flying

: Searchlight Geist gains deathtouch until end of turn. (Any amount of damage it deals to a creature is enough to destroy it.)

Searing Barrage deals 5 damage to target creature.

Adamant — If at least three red mana was spent to cast this spell, Searing Barrage deals 3 damage to that creature's controller.

Searing Blood deals 2 damage to target creature. When that creature dies this turn, Searing Blood deals 3 damage to the creature's controller.

Destroy target attacking or blocking creature with power 2 or less.

Choose a color. Searing Rays deals damage to each player equal to the number of creatures of that color that player controls.

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

: Searing Spear Askari gains menace until end of turn. (It can't be blocked except by two or more creatures.)

Searing Wind deals 10 damage to any target.

Enchant land (Target a land as you cast this. This card enters attached to that land.)

Enchanted land is an Island.

: Add or .

: Add .

, , Sacrifice a Bird: Draw a card.

Choose up to five worth of modes. You may choose the same mode more than once.

— Put a +1/+1 counter on a creature you control. It gains vigilance and trample until end of turn.

— Choose artifact or enchantment. Destroy all permanents of the chosen type.

— Draw cards equal to the greatest power among creatures you control.

Choose up to five worth of modes. You may choose the same mode more than once.

— Each player sacrifices a creature.

— Draw a card for each creature that died under your control this turn.

— Each opponent loses X life, where X is the number of creature cards in your graveyard.

Choose up to five worth of modes. You may choose the same mode more than once.

— Create a tapped Treasure token.

— Exile the top two cards of your library. Until the end of your next turn, you may play them.

— Until the end of your next turn, whenever you cast a spell, Season of the Bold deals 2 damage to up to one target creature.

At the beginning of your upkeep, sacrifice Season of the Witch unless you pay 2 life.

At the beginning of the end step, destroy all untapped creatures that didn't attack this turn, except for creatures that couldn't attack.

Add one mana of any color. (Then exile this card. You may cast the creature later from exile.)

Whenever you attack with three or more creatures, Seasoned Consultant gets +2/+0 until end of turn.

Discard a card: Tap Seasoned Hallowblade. It gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

When Seasoned Pyromancer enters, discard two cards, then draw two cards. For each nonland card discarded this way, create a 1/1 red Elemental creature token.

, Exile Seasoned Pyromancer from your graveyard: Create two 1/1 red Elemental creature tokens.

Whenever Seasoned Warrenguard attacks while you control a token, Seasoned Warrenguard gets +2/+0 until end of turn.

Return any number of cards with different mana values from your graveyard to your hand. Put Seasons Past on the bottom of its owner's library.

Enchant creature or planeswalker you don't control

When Seatower Imprisonment enters the battlefield, conjure a card named Soldiers of the Watch onto the battlefield.

Enchanted permanent can't attack or block, and its activated abilities can't be activated.

As Secluded Glen enters, you may reveal a Faerie card from your hand. If you don't, Secluded Glen enters tapped.

: Add or .

Up to two target creatures each get +2/+1 until end of turn. Create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Counter target spell that's the second spell cast this turn.

Choose one —

• Look at the top five cards of target opponent's library, then put them back in any order.

• Look at the top five cards of your library, then put them back in any order.

Entwine (Choose both if you pay the entwine cost.)

Exile target attacking creature.

Draw a card.

Nonland permanents you control and permanent spells you control are enchantments in addition to their other types.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

Defender

: Venture into the dungeon. Activate only as a sorcery. (Enter the first room or advance to the next room.)

Face-down creatures you control get +0/+1.

Whenever a permanent you control is turned face up, draw a card.

Exile target nonland card from your graveyard. Search your library for any number of cards with the same name as that card, reveal them, put them into your hand, then shuffle.