Exile Simian Spirit Guide from your hand: Add .

Simic Growth Chamber enters tapped.

When Simic Growth Chamber enters, return a land you control to its owner's hand.

: Add .

: Add or .

: Simic Keyrune becomes a 2/3 green and blue Crab artifact creature with hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

, : Add .

: Add .

As an additional cost to cast this spell, exile two creature cards from your graveyard.

Trample

: Add .

, : Target creature gets +1/+1 and gains trample until end of turn.

Skemfar Elderhall enters tapped.

: Add .

, , Sacrifice Skemfar Elderhall: Up to one target creature you don't control gets -2/-2 until end of turn. Create two 1/1 green Elf Warrior creature tokens. Activate only as a sorcery.

Sacrifice a Goblin: Add .

Create five 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this creature: Add ."

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

Trample, haste

At the beginning of the end step, if Skizzik wasn't kicked, sacrifice it.

: Add or .

: Mill two cards.

As an additional cost to cast this spell, sacrifice a creature.

Draw two cards.

Skybridge Towers enters tapped.

: Add or .

, , Sacrifice Skybridge Towers: Draw a card.

Kicker

Indestructible

When Skyclave Relic enters, if it was kicked, create two tapped tokens that are copies of Skyclave Relic.

: Add one mana of any color.

, , Sacrifice Skycloud Egg: Add . Draw a card.

Whenever another creature you control enters, put a +1/+1 counter on this creature.

As long as this creature has three or more +1/+1 counters on it, it has flying and is a Knight in addition to its other types.

Flying

When Skyline Savior enters the battlefield, return a permanent you control to its owner's hand. If it's a non-Angel creature card, it perpetually gets +1/+1, gains flying, and becomes an Angel in addition to its other types.

Skyshroud Forest enters tapped.

: Add .

: Add or . Skyshroud Forest deals 1 damage to you.

Whenever Slagstone Refinery or another nontoken artifact you control is put into a graveyard from the battlefield or is put into exile from the battlefield, create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

Buyback—Pay 4 life. (You may pay 4 life in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.)

Destroy target nonblack creature. It can't be regenerated.

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

When Slinn Voda, the Rising Deep enters, if it was kicked, return all creatures to their owners' hands except for Merfolk, Krakens, Leviathans, Octopuses, and Serpents.

: Add .

: Add .

: Add one mana of any color. Spend this mana only to cast a Sliver spell.

, : Create a 1/1 colorless Sliver creature token. Activate only if you control a Sliver.

Slumbering Waterways enters the battlefield tapped.

: Add or .

Flying, vigilance, trample

: Add two mana in any combination of colors. Spend this mana only to cast Elemental spells or activate abilities of Elementals.

Smoldering Crater enters tapped.

: Add .

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

Smoldering Spires enters tapped.

When Smoldering Spires enters, target creature can't block this turn.

: Add .

Spree (Choose one or more additional costs.)

+ — Mill four cards. You may put up to two creature and/or land cards from among the milled cards into your hand.

+ — You may put up to two creature cards from your hand onto the battlefield.

+ — Creatures you control with power 4 or greater gain hexproof and indestructible until end of turn.

: Add .

(: Add or .)

Snowfield Sinkhole enters tapped.

: Add .

Channel — , Discard Sokenzan, Crucible of Defiance: Create two 1/1 colorless Spirit creature tokens. They gain haste until end of turn. This ability costs less to activate for each legendary creature you control.

: Add .

Solar Transformer enters tapped.

When Solar Transformer enters, you get (three energy counters).

: Add .

, Pay : Add one mana of any color.

If Soldevi Excavations would enter, sacrifice an untapped Island instead. If you do, put Soldevi Excavations onto the battlefield. If you don't, put it into its owner's graveyard.

: Add .

, : Scry 1.

: Add . Activate only once each turn. (While activating an ability, use rather than tapping the permanent to pay for .)

You may play an additional land on each of your turns.

Whenever you cast a spell, draw two cards.

At the beginning of your end step, discard your hand.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I, II — Until your next turn, creatures you control gain ": Add one mana of any color."

III — Put a +1/+1 counter on each creature you control. Those creatures gain vigilance, trample, and indestructible until end of turn.

Song-Mad Ruins enters tapped.

: Add .

Tap target creature. Sonic Assault deals 2 damage to that creature's controller.

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.)

: Add one mana of any color.

, : Untap another target artifact.

, : Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

, : Target creature can't be blocked this turn.

As an additional cost to cast this spell, discard a card at random.

Sonic Seizure deals 3 damage to any target.

(Gain the next level as a sorcery to add its ability.)

When Sorcerer Class enters, draw two cards, then discard two cards.

: Level 2

//Level_2//

Creatures you control have ": Add or . Spend this mana only to cast an instant or sorcery spell or to gain a Class level."

: Level 3

//Level_3//

Whenever you cast an instant or sorcery spell, that spell deals damage to each opponent equal to the number of instant and sorcery spells you've cast this turn.

During your turn, creatures and planeswalkers you control have lifelink.

+2: Sorin, Vengeful Bloodlord deals 1 damage to target player or planeswalker.

−X: Return target creature card with mana value X from your graveyard to the battlefield. That creature is a Vampire in addition to its other types.

, , Sacrifice Soul Separator: Exile target creature card from your graveyard. Create a token that's a copy of that card, except it's 1/1, it's a Spirit in addition to its other types, and it has flying. Create a black Zombie creature token with power equal to that card's power and toughness equal to that card's toughness.

: Target creature gains trample until end of turn. If this is the third time this ability has resolved this turn, you may add .

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.

Soured Springs enters tapped.

When Soured Springs enters, it deals 1 damage to target opponent.

: Add or .

Devoid (This card has no color.)

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

When you cast this spell, search your library for a land card, put it onto the battlefield, then shuffle.

When you cast this spell, if it was kicked, exile target land.

When Spara's Adjudicators enters, target creature an opponent controls can't attack or block until your next turn.

, Exile Spara's Adjudicators from your hand: Target land gains ": Add , , or " until Spara's Adjudicators is cast from exile. You may cast Spara's Adjudicators for as long as it remains exiled.