Flying, vigilance

, Pay 3 life: Regenerate Sentry of the Underworld.

Sacrifice another creature: Sepulcher Ghoul gets +2/+2 until end of turn. Activate only once each turn.

: Add .

, , Sacrifice Sequestered Stash: Mill five cards. Then you may put an artifact card from your graveyard on top of your library.

When Seraph Sanctuary enters the battlefield, you gain 1 life.

Whenever an Angel enters the battlefield under your control, you gain 1 life.

: Add .

Prevent all combat damage X target creatures would deal this turn.

Create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it, where X is one plus the total number of instant and sorcery cards you own in exile and in your graveyard.

Whenever an Elf you control dies, exile it.

, Pay 2 life: Until end of turn, you may cast a creature spell from among cards exiled with Serpent's Soul-Jar.

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

Vigilance (Attacking doesn't cause this creature to tap.)

Other creatures you control have vigilance.

: Add for each enchantment you control.

Flying

When Serum Raker dies, each player discards a card.

Flying

Whenever you cast a noncreature spell, put an oil counter on Serum Sovereign.

, Remove an oil counter from Serum Sovereign: Draw a card, then scry 2.

When Serum Visionary enters the battlefield, draw a card, then scry 2.

Flying

Whenever you cast a noncreature spell, put an oil counter on Serum-Core Chimera.

Remove three oil counters from Serum-Core Chimera: Draw a card. Then you may discard a nonland card. When you discard a card this way, Serum-Core Chimera deals 3 damage to target creature or planeswalker. Activate only as a sorcery.

Whenever Sethron, Hurloon General or another nontoken Minotaur enters the battlefield under your control, create a 2/3 red Minotaur creature token.

: Minotaurs you control get +1/+0 and gain menace and haste until end of turn. ( can be paid with either or .)

Target creature an opponent controls perpetually gets -2/-2 and gains "At the beginning of each upkeep, this creature perpetually gets -1/-1."

Flying, ward

When Shadow Puppeteers enters the battlefield, create two 1/1 black Faerie Rogue creature tokens with flying.

Whenever a creature you control with flying attacks, you may have it become a red Dragon with base power and toughness 4/4 in addition to its other colors and types until end of turn.

Flying, double strike

At the beginning of combat on your turn, you may choose two. Each mode must target a different player.

• Target player creates a 2/1 white and black Inkling creature token with flying.

• Target player draws a card and loses 1 life.

• Target player puts a +1/+1 counter on each creature they control.

Haste

Whenever a creature you control deals combat damage to a player, put a +1/+1 counter on it.

Ferocious — : Draw a card for each creature you control with power 4 or greater.

Lifelink

At the beginning of your end step, you may pay . If you do, draw X cards. X can't be greater than the amount of life you gained this turn.

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

, Remove a +1/+1 counter from a creature you control: Draw a card.

When Sharae of Numbing Depths enters the battlefield, tap target creature an opponent controls and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Whenever you tap one or more untapped creatures your opponents control, draw a card. This ability triggers only once each turn.

Join forces — Starting with you, each player may pay any amount of mana. Each player mills X cards, where X is the total amount of mana paid this way.

Flying

When Sharuum the Hegemon enters the battlefield, you may return target artifact card from your graveyard to the battlefield.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Choose one —

• Shatter the Source deals 6 damage to target creature, planeswalker, or battle.

• Destroy target artifact.

Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)

Destroy target artifact.

Menace (This creature can't be blocked except by two or more creatures.)

As Shatterskull, the Hammer Pass enters the battlefield, you may pay 3 life. If you don't, it enters the battlefield tapped.

: Add .

Vigilance

When Shaun & Rebecca, Agents enters the battlefield, search your graveyard, hand, and library for a card named The Animus and put it onto the battlefield, then shuffle.

: Add . When you do, mill two cards.

Enchant creature

When Sheltering Boughs enters the battlefield, draw a card.

Enchanted creature gets +1/+3.

Enchant creature

As long as enchanted creature is green, it gets +1/+1 and has indestructible. (Damage and effects that say "destroy" don't destroy it. If its toughness is 0 or less, it's still put into its owner's graveyard.)

As long as enchanted creature is white, it gets +1/+1 and has flying.

, , Return Shigeki, Jukai Visionary to its owner's hand: Reveal the top four cards of your library. You may put a land card from among them onto the battlefield tapped. Put the rest into your graveyard.

Channel — , Discard Shigeki: Return X target nonlegendary cards from your graveyard to your hand.

Flying

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Flying, haste

: Add .

, : Target legendary creature gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)

Target creature you control gets +1/+1 and gains hexproof until end of turn. Untap it. (It can't be the target of spells or abilities your opponents control.)

Flash

Enchant artifact or creature

As long as enchanted permanent is a creature, it gets -3/-0 and loses flying.

When Shortcut to Mushrooms enters the battlefield, the Ring tempts you.

At the beginning of your end step, if a permanent you controlled left the battlefield this turn, put a +1/+1 counter on target creature you control.

Choose target creature you control. Turn it face up if it's face down. Then it deals damage equal to its power to each other creature.

At the beginning of your upkeep and whenever you cast a green spell, put a charge counter on Shrine of Boundless Growth.

, Sacrifice Shrine of Boundless Growth: Add for each charge counter on Shrine of Boundless Growth.

Target opponent chooses a card in your graveyard. You may pay . If you do, repeat this process except that opponent can't choose a card already chosen for Shrouded Lore. Then put the last chosen card into your hand.

When Shrouded Shepherd enters the battlefield, target creature you control gets +2/+2 until end of turn.

Whenever Shu Defender blocks, it gets +0/+2 until end of turn.

: You gain 1 life. Activate only during your turn, before attackers are declared.

Vigilance; horsemanship (This creature can't be blocked except by creatures with horsemanship.)

When Shu Soldier-Farmers enters the battlefield, you gain 4 life.

Delve (Each card you exile from your graveyard while casting this spell pays for .)

When Sibsig Muckdraggers enters the battlefield, return target creature card from your graveyard to your hand.

Deathtouch

Exploit (When this creature enters the battlefield, you may sacrifice a creature.)

When Sidisi, Undead Vizier exploits a creature, you may search your library for a card, put it into your hand, then shuffle.

The Nuka-Cola Challenge — Whenever one or more creatures you control deal combat damage to a player, put a quest counter on Sierra, Nuka's Biggest Fan and create a Food token.

Whenever you sacrifice a Food, target creature you control gets +X/+X until end of turn, where X is the number of quest counters on Sierra.