Singularity Rupture

Destroy all creatures, then any number of target players each mill half their library, rounded down.

Cryoshatter

Enchant creature
Enchanted creature gets -5/-0.
When enchanted creature becomes tapped or is dealt damage, destroy it.

Dismal Backwater

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {U} or {B}.

Selfcraft Mechan

When this creature enters, you may sacrifice an artifact. When you do, put a +1/+1 counter on target creature and draw a card.

Depressurize

Target creature gets -3/-0 until end of turn. Then if that creature's power is 0 or less, destroy it.

Susurian Dirgecraft

When this Spacecraft enters, each opponent sacrifices a nontoken creature.
Station (Tap another creature you control: Put charge counters equal to its power on this Spacecraft. Station only as a sorcery. It's an artifact creature at 7+.)
STATION 7+
Flying

Vivid Creek

This land enters tapped with two charge counters on it.
{T}: Add {U}.
{T}, Remove a charge counter from this land: Add one mana of any color.

Hylderblade

Equipped creature gets +3/+1.
Void — At the beginning of your end step, if a nonland permanent left the battlefield this turn or a spell was warped this turn, attach this Equipment to target creature you control.
Equip {4} ({4}: Attach to target creature you control. Equip only as a sorcery.)

Emissary Escort

This creature gets +X/+0, where X is the greatest mana value among other artifacts you control.

Vivid Marsh

This land enters tapped with two charge counters on it.
{T}: Add {B}.
{T}, Remove a charge counter from this land: Add one mana of any color.

Sothera, the Supervoid

Whenever a creature you control dies, each opponent chooses a creature they control and exiles it.
At the beginning of your end step, if a player controls no creatures, sacrifice Sothera, then put a creature card exiled with it onto the battlefield under your control with two additional +1/+1 counters on it.

Virus Beetle

When this creature enters, each opponent discards a card.

Gravpack Monoist

Flying
When this creature dies, create a tapped 2/2 colorless Robot artifact creature token.

Unravel

Counter target spell. If the amount of mana spent to cast that spell was less than its mana value, you draw a card.

Embrace Oblivion

As an additional cost to cast this spell, sacrifice an artifact or creature.
Destroy target creature or Spacecraft.

Cryogen Relic

When this artifact enters or leaves the battlefield, draw a card.
{1}{U}, Sacrifice this artifact: Put a stun counter on up to one target tapped creature. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Susurian Voidborn

Whenever this creature or another creature or artifact you control dies, target opponent loses 1 life and you gain 1 life.
Warp {B} (You may cast this card from your hand for its warp cost. Exile this creature at the beginning of the next end step, then you may cast it from exile on a later turn.)

Swamp

Gravblade Heavy

As long as you control an artifact, this creature gets +1/+0 and has deathtouch.

Mechan Navigator

Whenever this creature becomes tapped, draw a card, then discard a card.

Timeline Culler

Haste
You may cast this card from your graveyard using its warp ability.
Warp—{B}, Pay 2 life. (You may cast this card from your hand or graveyard for its warp cost. If you do, exile this creature at the beginning of the next end step, then you may cast it from exile on a later turn.)

Dimir Guildgate

This land enters tapped.
{T}: Add {U} or {B}.

Thaumaton Torpedo

{6}, {T}, Sacrifice this artifact: Destroy target nonland permanent. This ability costs {3} less to activate if you attacked with a Spacecraft this turn.

Divert Disaster

Counter target spell unless its controller pays {2}. If they do, you create a Lander token. (It's an artifact with "{2}, {T}, Sacrifice this token: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.")

Alpharael, Dreaming Acolyte

When Alpharael enters, draw two cards. Then discard two cards unless you discard an artifact card.
During your turn, Alpharael has deathtouch.

Dubious Delicacy

Flash
When this artifact enters, up to one target creature gets -3/-3 until end of turn.
{2}, {T}, Sacrifice this artifact: You gain 3 life.
{2}, {T}, Sacrifice this artifact: Target opponent loses 3 life.

Illvoi Light Jammer

Flash
When this Equipment enters, attach it to target creature you control. That creature gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)
Equipped creature gets +1/+2.
Equip {3}

Island

Specimen Freighter

When this Spacecraft enters, return up to two target non-Spacecraft creatures to their owners' hands.
Station (Tap another creature you control: Put charge counters equal to its power on this Spacecraft. Station only as a sorcery. It's an artifact creature at 9+.)
STATION 9+
Flying
Whenever this Spacecraft attacks, defending player mills four cards.

Wurmwall Sweeper

When this Spacecraft enters, surveil 2.
Station (Tap another creature you control: Put charge counters equal to its power on this Spacecraft. Station only as a sorcery. It's an artifact creature at 4+.)
STATION 4+
Flying

Fell Gravship

When this Spacecraft enters, mill three cards, then return a creature or Spacecraft card from your graveyard to your hand.
Station (Tap another creature you control: Put charge counters equal to its power on this Spacecraft. Station only as a sorcery. It's an artifact creature at 8+.)
STATION 8+
Flying, lifelink