Flying

Drain Life — When Shard of the Nightbringer enters the battlefield, if you cast it, target opponent loses half their life, rounded up. You gain life equal to the life lost this way.

Exile 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.

Flying

Shauku, Endbringer can't attack if there's another creature on the battlefield.

At the beginning of your upkeep, you lose 3 life.

: Exile target creature and put a +1/+1 counter on Shauku.

Trample

Cumulative upkeep—Put a +1/+1 counter on a creature an opponent controls. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Target creature gains indestructible until end of turn. Scry 1. (Damage and effects that say "destroy" don't destroy the creature.)

Target creature you control gains hexproof until end of turn. You gain life equal to that creature's toughness. (A creature with hexproof can't be the target of spells or abilities your opponents control.)

Sheriff of Safe Passage enters the battlefield with a +1/+1 counter on it plus an additional +1/+1 counter on it for each other creature you control.

Plot (You may pay and exile this card from your hand. Cast it as a sorcery on a later turn without paying its mana cost. Plot only as a sorcery.)

Target creature gets +2/+2 until end of turn. (Then exile this card. You may cast the creature later from exile.)

Shimmerdrift Vale enters the battlefield tapped.

As Shimmerdrift Vale enters the battlefield, choose a color.

: Add one mana of the chosen color.

Flying

Phasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.)

Whenever Shimmering Efreet phases in, target creature phases out. (It phases in before its controller untaps during their next untap step.)

: Add .

, : Add one mana of any color.

Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.)

Enchanted creature has flying. (It can't be blocked except by creatures with flying or reach.)

: Return Shimmering Wings to its owner's hand.

At the beginning of your upkeep, sacrifice a Snake.

Whenever Shisato, Whispering Hunter deals combat damage to a player, that player skips their next untap step.

, : Draw two cards, then discard a card. Create a 1/1 colorless Pilot creature token with "This creature crews Vehicles as though its power were 2 greater."

Crew 8 (Tap any number of creatures you control with total power 8 or more: This Vehicle becomes an artifact creature until end of turn.)

Shorikai, Genesis Engine can be your commander.

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

Flying

: Shriekdiver gains haste until end of turn.

Shriekhorn enters the battlefield with three charge counters on it.

, Remove a charge counter from Shriekhorn: Target player mills two cards.

Flying

When Shrieking Drake enters the battlefield, return a creature you control to its owner's hand.

Haste

When Shrieking Mogg enters the battlefield, tap all other creatures.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

When Shriekmaw enters the battlefield, destroy target nonartifact, nonblack creature.

Evoke (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

Creatures with power less than Shrill Howler's power can't block it.

: Transform Shrill Howler.

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.

At the beginning of your upkeep and whenever you cast a black spell, put a charge counter on Shrine of Limitless Power.

, , Sacrifice Shrine of Limitless Power: Target player discards a card for each charge counter on Shrine of Limitless Power.

At the beginning of your upkeep and whenever you cast a blue spell, put a charge counter on Shrine of Piercing Vision.

, Sacrifice Shrine of Piercing Vision: Look at the top X cards of your library, where X is the number of charge counters on Shrine of Piercing Vision. Put one of those cards into your hand and the rest on the bottom of your library in any order.

When Shrine Steward enters the battlefield, you may search your library for an Aura or Shrine card, reveal it, put it into your hand, then shuffle.

All creatures get -1/-1 until end of turn.

Equipped creature has ", Unattach Shuriken: Shuriken deals 2 damage to target creature. That creature's controller gains control of Shuriken unless it was unattached from a Ninja."

Equip (: Attach to target creature you control. Equip only as a sorcery.)

Gain control of target artifact or creature until end of turn. Untap it. It gains haste until end of turn. Create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

Wither (This deals damage to creatures in the form of -1/-1 counters.)

Eminence — Whenever you attack with one or more Knights, if Sidar Jabari of Zhalfir is in the command zone or on the battlefield, draw a card, then discard a card.

Flying, first strike

Whenever Sidar Jabari deals combat damage to a player, return target Knight creature card from your graveyard to the battlefield.

Enchant creature

Enchanted creature can't attack or block.

: Exile enchanted creature. Create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

Flash

First strike, protection from God creatures

When Sigrid, God-Favored enters the battlefield, exile up to one target attacking or blocking creature until Sigrid leaves the battlefield.

Flying

, : Tap target creature. ( is the untap symbol.)

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

Flying, first strike

Destroy target attacking creature. You gain 3 life.

Flash

When Singer of Swift Rivers enters the battlefield, put a shield counter on another target creature you control. (If it would be dealt damage or destroyed, remove a shield counter from it instead.)

You may cast Merfolk spells as though they had flash.

Enchant creature

Enchanted creature has ": This creature deals damage equal to its power to target attacking or blocking creature."

: Add .

+1: Until your next turn, creatures can't attack you or planeswalkers you control unless their controller pays 2 life for each of those creatures.

−3: Search your library for a Dragon card, reveal it, put it into your hand, then shuffle.

−7: Destroy all non-Dragon creatures.

Sivitri, Dragon Master can be your commander.

Enchant creature

Enchanted creature gets +1/+1 and has ": Regenerate this creature."

Spectacle (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.)

Skewer the Critics deals 3 damage to any target.

As long as you control a Beast, Skirk Outrider gets +2/+2 and has trample.

Morbid — , Tap two untapped creatures you control: Create a 5/5 black Demon creature token with flying. Activate only if a creature died this turn.

: Monstrosity 4. (If this creature isn't monstrous, put four +1/+1 counters on it and it becomes monstrous.)

As long as Skittering Crustacean is monstrous, it has hexproof. (It can't be the target of spells or abilities your opponents control.)

When you cast a creature spell, sacrifice Skittering Horror.

When you cast a creature spell, sacrifice Skittering Monstrosity.

When Skittering Surveyor enters the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Flying, lifelink

: You and target opponent each draw a card.