Trample

Whenever another nontoken creature you control enters, you may draw a card.

Vigilance

: Creatures you control get +2/+2 and gain first strike and lifelink until end of turn.

, Exile Soul of Theros from your graveyard: Creatures you control get +2/+2 and gain first strike and lifelink until end of turn.

Enchant nonland permanent

At the beginning of the upkeep of enchanted permanent's controller, that player sacrifices it unless they pay , where X is its mana value.

Whenever a Bird is put into your graveyard from the battlefield, put a feather counter on Soulcatchers' Aerie.

Bird creatures get +1/+1 for each feather counter on Soulcatchers' Aerie.

Whenever a creature is exiled from the battlefield, put a +1/+1 counter on Soulherder.

At the beginning of your end step, you may exile another target creature you control, then return that card to the battlefield under its owner's control.

As an additional cost to cast this spell, discard a card or sacrifice a permanent.

Fathomless descent — Souls of the Lost's power is equal to the number of permanent cards in your graveyard and its toughness is equal to that number plus 1.

Create a 1/1 green Wolf creature token. It has "This creature gets +1/+1 for each card named Sound the Call in each graveyard."

, : Destroy target red permanent.

(: Add , , or .)

Spara's Headquarters enters tapped.

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

Spectacle (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.)

Flying, trample

At the beginning of your upkeep, Spawn of Mayhem deals 1 damage to each player. Then if you have 10 or less life, put a +1/+1 counter on Spawn of Mayhem.

Vigilance, lifelink (Attacking doesn't cause this creature to tap. Damage dealt by this creature also causes you to gain that much life.)

: Create a 4/4 white Angel creature token with flying. Activate only if you have at least 7 life more than your starting life total and only as a sorcery.

Indestructible

: Target creature with power 5 or greater gains indestructible until end of turn.

Flying

: Return target Spirit you control to its owner's hand.

Magecraft — Whenever you cast or copy an instant or sorcery spell, put a book counter on Spell Satchel.

, Remove a book counter from Spell Satchel: Add .

, , Remove three book counters from Spell Satchel: Draw a card.

Flying, trample

Spellheart Chimera's power is equal to the number of instant and sorcery cards in your graveyard.

Imprint — When Spellweaver Helix enters, you may exile two target sorcery cards from a single graveyard.

Whenever a player casts a card, if it has the same name as one of the cards exiled with Spellweaver Helix, you may copy the other. If you do, you may cast the copy without paying its mana cost.

Sphere of Annihilation enters with X void counters on it.

At the beginning of your upkeep, exile Sphere of Annihilation, all creatures and planeswalkers with mana value less than or equal to the number of void counters on it, and all creature and planeswalker cards in graveyards with mana value less than or equal to the number of void counters on it.

If a black source would deal damage to you, prevent 2 of that damage.

If an artifact would deal damage to you, prevent 1 of that damage.

Spells cost more to cast.

Sphere of the Suns enters tapped and with three charge counters on it.

, Remove a charge counter from Sphere of the Suns: Add one mana of any color.

Flying

Discard two nonland cards with the same name: Draw four cards.

Sphinx of the Guildpact is all colors.

Flying

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

Flying

At the beginning of each of your postcombat main phases, there is an additional beginning phase after this phase. (The beginning phase includes the untap, upkeep, and draw steps.)

, , Sacrifice a white creature, a blue creature, and a black creature: Search your library for a card named Sphinx Sovereign, put it onto the battlefield, then shuffle.

Spectacle (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.)

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

Target creature you control deals damage equal to its power to each of X target creatures and/or planeswalkers.

Flying

You have hexproof. (You can't be the target of spells or abilities your opponents control.)

Each player can't draw more than one card each turn.

When Spirit of the Season enters, it gains haste if it's summer. Put a +1/+1 counter on it if it's autumn. You gain 5 life if it's winter. If it's spring, search your library for a basic land card, reveal it, put it into your hand, then shuffle.

When Spiteful Hexmage enters, create a Cursed Role token attached to target creature you control. (If you control another Role on it, put that one into the graveyard. Enchanted creature is 1/1.)

Choose target player. Return half the creatures they control to their owner's hand, rounded up.

Choose one —

• Target player discards two cards.

• Target player reveals their hand. You choose a card from it. That player discards that card.

Target creature you control gets +1/+0 until end of turn for each mana from a Treasure that was spent to cast this spell. Then that creature deals damage equal to its power to target creature an opponent controls.

Destroy target creature, then proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Bestow

Enchanted creature gets +1/+1.

Landfall — Whenever a land you control enters, you may pay if Springheart Nantuko is attached to a creature you control. If you do, create a token that's a copy of that creature. If you didn't create a token this way, create a 1/1 green Insect creature token.

Target creature you control gets +1/+1 until end of turn. It can't be blocked by creatures with power 3 or greater this turn.

Squelching Leeches's power and toughness are each equal to the number of Swamps you control.

At the beginning of each opponent's upkeep, that player loses 1 life for each card fewer than three in their hand.

Whenever you cast a black spell or a Swamp you control enters, you gain 1 life.

As Staff of the Letter Magus enters, choose a consonant other than N, R, S, or T.

Whenever a player casts a spell, you gain 1 life for each time the chosen letter appears in that spell's name.

When Staff of the Storyteller enters, create a 1/1 white Spirit creature token with flying.

Whenever you create one or more creature tokens, put a story counter on Staff of the Storyteller.

, , Remove a story counter from Staff of the Storyteller: Draw a card.

Whenever you cast a green spell or a Forest you control enters, you gain 1 life.

Defender

Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, Stalked Researcher can attack this turn as though it didn't have defender.

Put two +1/+1 counters on target creature and two +1/+1 counters on another target creature.

Flying

Artifact and enchantment spells you cast cost less to cast.

Surveil 2, then draw a card. You may planeswalk. (To surveil 2, look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

When Steamflogger of the Month enters, it assembles a Contraption for each Contraption you control. (To assemble a Contraption, put the top card of your Contraption deck face up onto one of your sprockets.)

Enchant creature

As long as enchanted creature is white, it gets +1/+1 and has lifelink. (Damage dealt by the creature also causes its controller to gain that much life.)

As long as enchanted creature is blue, it gets +1/+1 and can't be blocked.