When Scourge of Fleets enters the battlefield, return each creature your opponents control with toughness X or less to its owner's hand, where X is the number of Islands you control.

Draw cards equal to the number of cards in your hand plus one. You have no maximum hand size for the rest of the game.

As Sea Gate, Reborn enters the battlefield, you may pay 3 life. If you don't, it enters the battlefield tapped.
: Add .

Seachrome Coast enters the battlefield tapped unless you control two or fewer other lands.
: Add or .

Sealock Monster can't attack unless defending player controls an Island.
: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)
When Sealock Monster becomes monstrous, target land becomes an Island in addition to its other types.

Discard a land card: Seismic Assault deals 2 damage to any target.

(Start the game with this conspiracy face up in the command zone.)
At the beginning of the first upkeep, create a 1/1 colorless Construct artifact creature token with defender.

Shatterskull Smashing deals X damage divided as you choose among up to two target creatures and/or planeswalkers. If X is 6 or more, Shatterskull Smashing deals twice X damage divided as you choose among them instead.

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

: Add .
, : Shivan Gorge deals 1 damage to each opponent.

When Silkwrap enters the battlefield, exile target creature with converted mana cost 3 or less an opponent controls until Silkwrap leaves the battlefield. (That creature returns under its owner's control.)

Simic Guildgate enters the battlefield tapped.
: Add or .

Flying
When Skyscanner enters the battlefield, draw a card.

(: Add or .)
Smoldering Marsh enters the battlefield tapped unless you control two or more basic lands.

Each creature deals damage to itself equal to its power.

Deathtouch
: Return up to three target creature cards from your graveyard to your hand.
, Exile Soul of Innistrad from your graveyard: Return up to three target creature cards from your graveyard to your hand.

Flash
Flying
When Spell Queller enters the battlefield, exile target spell with converted mana cost 4 or less.
When Spell Queller leaves the battlefield, the exiled card's owner may cast that card without paying its mana cost.

Spirebluff Canal enters the battlefield tapped unless you control two or fewer other lands.
: Add or .

: Put a +1/+1 counter on each artifact creature you control.

: Add .
, Sacrifice Strip Mine: Destroy target land.