mtg.wtf

When Serene Sleuth enters the battlefield, investigate.
At the beginning of combat on your turn, investigate for each goaded creature you control. Then each creature you control is no longer goaded.

Kicker {2}{W}
When Sergeant-at-Arms enters the battlefield, if it was kicked, create two 1/1 white Soldier creature tokens.

When Serpent Assassin enters the battlefield, you may destroy target nonblack creature.

When Serpent Warrior enters the battlefield, you lose 3 life.

When Servant of the Conduit enters the battlefield, you get {E}{E}.
{T}, Pay {E}: Add one mana of any color.

When Servo Schematic enters the battlefield or is put into a graveyard from the battlefield, create a 1/1 colorless Servo artifact creature token.

When Setessan Petitioner enters the battlefield, you gain life equal to your devotion to green.

When Setessan Starbreaker enters the battlefield, you may destroy target Aura.

Enchant creature you control
When Setessan Training enters the battlefield, draw a card.
Enchanted creature gets +1/+0 and has trample.

When Seven-Tail Mentor enters the battlefield or dies, put a +1/+1 counter on target creature or Vehicle you control.

Flying, ward {2}
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
When Shadowborn Demon enters the battlefield, destroy target non-Demon creature.
At the beginning of your upkeep, if there are fewer than six creature cards in your graveyard, sacrifice a creature.

When Shadowgrange Archfiend enters the battlefield, each opponent sacrifices a creature with the greatest power among creatures they control. You gain life equal to the greatest power among creatures sacrificed this way.
Madness—{2}{B}, Pay 8 life.

Shadowy Backstreet enters the battlefield tapped.
When Shadowy Backstreet enters the battlefield, surveil 1.

When Shaman of Spring enters the battlefield, draw a card.

When Shaman of the Pack enters the battlefield, target opponent loses life equal to the number of Elves you control.

Enchant creature
When Shape of the Wiitigo enters the battlefield, put six +1/+1 counters on enchanted creature.
At the beginning of your upkeep, put a +1/+1 counter on enchanted creature if it attacked or blocked since your last upkeep. Otherwise, remove a +1/+1 counter from it.

When Sharae of Numbing Depths enters the battlefield, tap target creature an opponent controls and put a stun counter on it.
Whenever you tap one or more untapped creatures your opponents control, draw a card. This ability triggers only once each turn.

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.

When Share the Spoils enters the battlefield or an opponent loses the game, exile the top card of each player's library.
During each player's turn, that player may play a land or cast a spell from among cards exiled with Share the Spoils, and they may spend mana as though it were mana of any color to cast that spell. When they do, exile the top card of their library.

Reach
Sharpshooter Elf's power is equal to the number of creatures you control.
When Sharpshooter Elf enters the battlefield, it deals damage equal to its power to target creature with flying an opponent controls.

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

Flying
When Shattered Seraph enters the battlefield, you gain 3 life.
{2}, Exile Shattered Seraph from your hand: Target land gains "{T}: Add {W}, {U}, or {B}" until Shattered Seraph is cast from exile. You may cast Shattered Seraph for as long as it remains exiled.

Enchant creature
When Sheltering Boughs enters the battlefield, draw a card.
Enchanted creature gets +1/+3.

Menace
When Sheoldred enters the battlefield, each opponent sacrifices a nontoken creature or planeswalker.
{4}{B}: Exile Sheoldred, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery and only if an opponent has eight or more cards in their graveyard.