"Until end of turn" and "this turn" effects don't end.

Untap target creature. It gets +1/+4 and gains reach until end of turn.

Deathtouch

When Steady-Handed Mook enters the battlefield, it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Roll a six-sided die. Assemble a number of Contraptions equal to the result. (To assemble a Contraption, put the top card of your Contraption deck face up onto one of your sprockets.)

As Steely Resolve enters the battlefield, choose a creature type.

Creatures of the chosen type have shroud. (They can't be the targets of spells or abilities.)

Landfall — Whenever a land enters the battlefield under your control, Steppe Lynx gets +2/+2 until end of turn.

Return target creature with converted mana cost X to its owner's hand. You create X 1/1 blue Faerie creature tokens with flying.

At the beginning of your upkeep, exile the top card of each opponent's library. Until end of turn, you may cast spells from among those exiled cards, and you may spend mana as though it were mana of any color to cast those spells.

Cohort — , Tap an untapped Ally you control: Look at the top four cards of your library. You may reveal an Equipment card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Stonefury deals damage to target creature equal to the number of lands you control.

Activated abilities of artifacts can't be activated.

, : You may tap or untap target creature.

Whenever Stonybrook Schoolmaster becomes tapped, you may create a 1/1 blue Merfolk Wizard creature token.

Raid — When Storm Fleet Pyromancer enters the battlefield, if you attacked this turn, Storm Fleet Pyromancer deals 2 damage to any target.

This spell costs less to cast if you've cast an instant or sorcery spell this turn.

Flying

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

When Stormwing Entity enters the battlefield, scry 2.

Imprint — When Strata Scythe enters the battlefield, search your library for a land card, exile it, then shuffle your library.

Equipped creature gets +1/+1 for each land on the battlefield with the same name as the exiled card.

Equip

Enchant creature

Enchanted creature gets +0/+2 and can block creatures with landwalk abilities as though they didn't have those abilities.

Choose target creature you control. Put a +1/+1 counter on it for each creature in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

Whenever Stromgald Spy attacks and isn't blocked, you may have defending player play with their hand revealed for as long as Stromgald Spy remains on the battlefield. If you do, Stromgald Spy assigns no combat damage this turn.

When this creature enters the battlefield,

exile target creature card with converted mana cost 2 or less from your graveyard. If it has augment, combine it with a host you control. Otherwise, put it onto the battlefield.

When Stumpsquall Hydra enters the battlefield, distribute X +1/+1 counters among it and any number of commanders.

Sturdy Hatchling enters the battlefield with four -1/-1 counters on it.

: Sturdy Hatchling gains shroud until end of turn. (It can't be the target of spells or abilities.)

Whenever you cast a green spell, remove a -1/-1 counter from Sturdy Hatchling.

Whenever you cast a blue spell, remove a -1/-1 counter from Sturdy Hatchling.

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.

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

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

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.)

When Sultai Soothsayer enters the battlefield, look at the top four cards of your library. Put one of them into your hand and the rest into your graveyard.

Summary Judgment deals 3 damage to target tapped creature.

Addendum — If you cast this spell during your main phase, it deals 5 damage instead.

, Pay 1 life: Add or .

, , Sacrifice Sunbaked Canyon: Draw a card.

You gain 4 life.

Recover (When a creature is put into your graveyard from the battlefield, you may pay . If you do, return this card from your graveyard to your hand. Otherwise, exile this card.)

Sunburst (This enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it.)

Create X 1/1 green Saproling creature tokens.

When Supply Runners enters the battlefield, put a +1/+1 counter on each other creature you control.

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.

Destroy target land. Create a 1/1 red Goblin creature token.

Whenever Suspicious Nanny deals combat damage to a player, it reassembles target Contraption that player controls. (Gain control of it and move it onto one of your sprockets.)

Svyelunite Temple enters the battlefield tapped.

: Add .

, Sacrifice Svyelunite Temple: Add .

: Add .

: Regenerate target Insect, Rat, Spider, or Squirrel.

Each player shuffles their hand, graveyard, and all permanents they own into their library, then draws seven cards. Each player's life total becomes 7.

Equipped creature gets +2/+2 and has protection from green and from blue.

Whenever equipped creature deals combat damage to a player, you create a 2/2 green Wolf creature token and that player mills ten cards.

Equip

: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its converted mana cost until end of turn.

: Target artifact creature gains deathtouch and lifelink until end of turn.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

: Target Merfolk you control gains protection from the color of your choice until end of turn.

Until your next turn, all lands you control become 2/2 Elemental creatures with reach, indestructible, and haste. They're still lands.

Target player gains 8 life.

Basic landcycling (, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle your library.)

Defender, hexproof

: Add one mana of any color.

When Sylvan Hierophant dies, exile Sylvan Hierophant, then return another target creature card from your graveyard to your hand.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

When Sylvan Messenger enters the battlefield, reveal the top four cards of your library. Put all Elf cards revealed this way into your hand and the rest on the bottom of your library in any order.

Choose an opponent. You and that player each create an X/X green Treefolk creature token.

Choose an opponent. You and that player each create X 1/1 green Elf Warrior creature tokens.

Reach

When Sylvan Primordial enters the battlefield, for each opponent, destroy target noncreature permanent that player controls. For each permanent destroyed this way, search your library for a Forest card and put that card onto the battlefield tapped. Then shuffle your library.

Exile up to two target artifacts and/or enchantments.

Basic landcycling (, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle your library.)

Search your library for a land card, reveal it, and put it into your hand. Then shuffle your library.