Whenever Stubborn Burrowfiend becomes saddled for the first time each turn, mill two cards, then Stubborn Burrowfiend gets +X/+X until end of turn, where X is the number of creature cards in your graveyard.

Saddle 2 (Tap any number of other creatures you control with total power 2 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)

When Student of Elements has flying, flip it.

: Stuffed Bear becomes a 4/4 green Bear artifact creature until end of turn.

A person outside the game looks at target opponent's hand and chooses a nonland card from it. That player discards that card.

Haste

: Another target creature with power 2 or less can't be blocked this turn.

, , Discard your hand: Until end of turn, whenever a creature you control with power 2 or less deals combat damage to a player, draw a card.

Flying

When Subjugator Angel enters the battlefield, tap all creatures your opponents control.

Choose one or more —

• Counter target spell.

• Counter target activated or triggered ability.

• Return target nonland permanent to its owner's hand.

• Create a token that's a copy of target creature you control.

• Target player draws a card.

If an opponent controls a Forest and you control an Island, you may cast this spell without paying its mana cost.

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

Subterranean Hangar enters the battlefield tapped.

: Put a storage counter on Subterranean Hangar.

, Remove any number of storage counters from Subterranean Hangar: Add for each storage counter removed this way.

When Subterranean Scout enters the battlefield, target creature with power 2 or less can't be blocked this turn.

Protection from red

: Subterranean Spirit deals 1 damage to each creature without flying.

Choose one or both —

• Target creature gets -1/-1 until end of turn.

• Put a +1/+1 counter on target creature.

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.

Target creature gets +2/+0 and gains first strike until end of turn.

Create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

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.

Sulfurous Blast deals 2 damage to each creature and each player. If you cast this spell during your main phase, Sulfurous Blast deals 3 damage to each creature and each player instead.

Sumala Rumblers's power is equal to the number of creatures you control.

Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)

Counter target creature spell. Create a 2/2 blue Illusion creature token.

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

Flying, vigilance, haste

Sunbird Effigy's power and toughness are each equal to the number of colors among the exiled cards used to craft it.

: For each color among the exiled cards used to craft Sunbird Effigy, add one mana of that color.

Whenever you cast a spell from your hand, reveal the top X cards of your library, where X is that spell's mana value. You may cast a spell with mana value X or less from among cards revealed this way without paying its mana cost. Put the rest on the bottom of your library in a random order.

Sunblade Elf gets +1/+1 as long as you control a Plains.

: Creatures you control get +1/+1 until end of turn.

Flying

When Sunblast Angel enters the battlefield, destroy all tapped creatures.

When Sun-Blessed Mount enters the battlefield, you may search your library and/or graveyard for a card named Huatli, Dinosaur Knight, reveal it, then put it into your hand. If you searched your library this way, shuffle.

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 creature with toughness 4 or greater.

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

When Sunscape Battlemage enters the battlefield, if it was kicked with its kicker, destroy target creature with flying.

When Sunscape Battlemage enters the battlefield, if it was kicked with its kicker, draw two cards.

Superior Numbers deals damage to target creature equal to the number of creatures you control in excess of the number of creatures target opponent controls.

Paradox — Draw a card for each spell you've cast this turn from anywhere other than your hand.

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.)

Whenever you discard a creature card, put a +1/+1 counter on Surly Badgersaur.

Whenever you discard a land card, create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Whenever you discard a noncreature, nonland card, Surly Badgersaur fights up to one target creature you don't control.

Whenever you cast an instant or sorcery spell, you may put a charge counter on Surrakar Spellblade.

Whenever Surrakar Spellblade deals combat damage to a player, you may draw X cards, where X is the number of charge counters on it.

Choose one or both —

• Return target Human creature card from your graveyard to your hand.

• Return target non-Human creature card from your graveyard to your hand.

, Exile Suspicious Shambler from your graveyard: Create two 2/2 black Zombie creature tokens. Activate only as a sorcery.

Flying

Swarm of Bloodflies enters the battlefield with two +1/+1 counters on it.

Whenever another creature dies, put a +1/+1 counter on Swarm of Bloodflies.

Swarm Shambler enters the battlefield with a +1/+1 counter on it.

Whenever a creature you control with a +1/+1 counter on it becomes the target of a spell an opponent controls, create a 1/1 green Insect creature token.

, : Put a +1/+1 counter on Swarm Shambler.

When Swarming Goblins enters the battlefield, 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.

Equipped creature has reach, ", : Tap target artifact or creature," and ", : Discover 10." (Exile cards from the top of your library until you exile a nonland card with mana value 10 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

Equip

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)

Menace

Double strike, vigilance, trample

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

Whenever Sylvan Basilisk becomes blocked by a creature, destroy that creature.

When Sylvan Brushstrider enters the battlefield, you gain 2 life.

Partner with Khorvath Brightflame (When this creature enters the battlefield, target player may put Khorvath into their hand from their library, then shuffle.)

Double strike

Dragons your team controls have double strike.

Two target creatures each get +2/+2 until end of turn.

Skip your draw step.

, Tap two untapped creatures you control: Draw a card.

When Symbiotic Wurm dies, create seven 1/1 green Insect creature tokens.

Create a 1/1 colorless Expansion-Symbol creature token for each different expansion symbol among permanents you control.

Flying

Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)