Indestructible

Whenever Sapling of Colfenor attacks, reveal the top card of your library. If it's a creature card, you gain life equal to that card's toughness, lose life equal to its power, then put it into your hand.

Flying

Blue spells you cast cost more to cast.

When Saprazzan Bailiff enters, exile all artifact and enchantment cards from all graveyards.

When Saprazzan Bailiff leaves the battlefield, return all artifact and enchantment cards from all graveyards to their owners' hands.

, Discard a card: Create a 1/1 green Saproling creature token. Any player may activate this ability.

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

Create two 1/1 green Saproling creature tokens. If this spell was kicked, create four of those tokens instead.

Whenever Saradoc, Master of Buckland or another nontoken creature you control with power 2 or less enters, create a 1/1 white Halfling creature token.

Tap two other untapped Halflings you control: Saradoc gets +2/+0 and gains lifelink until end of turn.

As long as it's your turn and you control four or more Mountains, Sardian Cliffstomper gets +X/+0, where X is the number of Mountains you control.

Whenever a creature attacks you or a planeswalker you control, each Dragon you control deals 1 damage to that creature.

+1: Until end of turn, each planeswalker you control becomes a 4/4 red Dragon creature and gains flying.

−3: Create a 4/4 red Dragon creature token with flying.

+2: Sarkhan, Dragonsoul deals 1 damage to each opponent and each creature your opponents control.

−3: Sarkhan, Dragonsoul deals 4 damage to target player or planeswalker.

−9: Search your library for any number of Dragon creature cards, put them onto the battlefield, then shuffle.

Dragon spells you cast cost less to cast.

Whenever a Dragon you control enters, you may have Sarkhan, Soul Aflame become a copy of it until end of turn, except its name is Sarkhan, Soul Aflame and it's legendary in addition to its other types.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Whenever you activate an ability of a Sarkhan planeswalker, Sarkhan's Whelp deals 1 damage to any target.

Haste

, Sacrifice Sarpadian Simulacrum: It deals 4 damage to target creature.

When Sarulf's Packmate enters, draw a card.

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.)

When Saruli Gatekeepers enters, if you control two or more Gates, you gain 7 life.

Vigilance, haste

As Saskia the Unyielding enters, choose a player.

Whenever a creature you control deals combat damage to a player, it deals that much damage to the chosen player.

Menace

Whenever Satoru, the Infiltrator and/or one or more other nontoken creatures you control enter, if none of them were cast or no mana was spent to cast them, draw a card.

Menace, haste

Whenever Satya, Aetherflux Genius attacks, create a tapped and attacking token that's a copy of up to one other target nontoken creature you control. You get (two energy counters). At the beginning of the next end step, sacrifice that token unless you pay an amount of equal to its mana value.

Trample

Ward—Sacrifice a legendary artifact or legendary creature.

Whenever an opponent casts a spell, amass Orcs 1.

Whenever an Army you control deals combat damage to a player, the Ring tempts you.

Whenever the Ring tempts you, you may discard your hand. If you do, draw four cards.

Flash

Elite Troops — Sautekh Immortal enters with a +1/+1 counter on it for each creature that died this turn.

Escalate (Pay this cost for each mode chosen beyond the first.)

Choose one or more —

• Creatures target player controls gain trample until end of turn.

• Savage Alliance deals 2 damage to target creature.

• Savage Alliance deals 1 damage to each creature target opponent controls.

: Savage Knuckleblade gets +2/+2 until end of turn. Activate only once each turn.

: Return Savage Knuckleblade to its owner's hand.

: Savage Knuckleblade gains haste until end of turn.

Enchant creature

Enchanted creature gets +2/+2 and has ": Regenerate this creature."

: Add , , or .

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

Choose one —

• Target player gains 2½ life.

• Prevent the next 2½ damage that would be dealt to target creature this turn.

Gotcha — If an opponent says "save" or "life," you may say "Gotcha" When you do, return Save Life from your graveyard to your hand.

Vigilance

Whenever an enchantment you control is put into a graveyard from the battlefield, put a +1/+1 counter on Savior of the Sleeping.

Whenever you sacrifice a black creature, you may pay 2 life. If you do, each other player sacrifices a creature of their choice.

Whenever you sacrifice a green creature, you may gain 2 life.

Haste

Whenever you cast a noncreature spell, put an oil counter on Sawblade Scamp.

, Remove an oil counter from Sawblade Scamp: It deals 1 damage to each opponent.

When Sawblade Slinger enters, choose up to one —

• Destroy target artifact an opponent controls.

• Sawblade Slinger fights target Zombie an opponent controls.

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Trample

Whenever this creature mutates, destroy target noncreature permanent. Its controller creates a 3/3 green Beast creature token.

Bloodrush — , Discard Scab-Clan Charger: Target attacking creature gets +2/+4 until end of turn.

Bloodthirst 2 (If an opponent was dealt damage this turn, this creature enters with two +1/+1 counters on it.)

Trample

Whenever a player taps an Island for mana, Scald deals 1 damage to that player.

: Scalding Devil deals 1 damage to target player or planeswalker.

, Pay 1 life, Sacrifice Scalding Tarn: Search your library for an Island or Mountain card, put it onto the battlefield, then shuffle.

Whenever an opponent casts a spell with mana value 3 or less, Scalding Viper deals 1 damage to that player.

Bolster 1, then put a +1/+1 counter on each creature you control with a +1/+1 counter on it. (To bolster 1, choose a creature with the least toughness among creatures you control and put a +1/+1 counter on it.)

Flash

Affinity for artifacts (This spell costs less to cast for each artifact you control.)

: Target creature gets +0/+1 until end of turn.

Until end of turn, target creature you control becomes a green Wurm with base power and toughness 6/4.

Overload (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

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

: You may put a land card from your hand onto the battlefield.

: Add . When you spend this mana to cast a Dragon creature spell, you gain 2 life.

As an additional cost to cast this spell, you may reveal a Dragon card from your hand.

Scaleguard Sentinels enters with a +1/+1 counter on it if you revealed a Dragon card or controlled a Dragon as you cast this spell.

This spell costs less to cast for each Lizard you control.

Target creature gets +2/+0 and gains lifelink and indestructible until end of turn.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Whenever Scalpelexis deals combat damage to a player, that player exiles the top four cards of their library. If two or more of those cards have the same name, repeat this process.

: Target player discards a card. Any player may activate this ability but only as a sorcery.

Whenever Scaretiller becomes tapped, choose one —

• You may put a land card from your hand onto the battlefield tapped.

• Return target land card from your graveyard to the battlefield tapped.

Remove a ki counter from Scarmaker: Target creature gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)