As an additional cost to cast this spell, sacrifice a creature.
Flying
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
When this creature enters, each opponent sacrifices a creature.

When this creature enters, surveil 3. (Look at the top three cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)
Threshold — This creature can't be blocked as long as there are seven or more cards in your graveyard.

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+.)
9+ | Flying
Whenever this Spacecraft attacks, defending player mills four cards.

Reach
At the beginning of combat on your turn, target Spider you control gets +2/+2 until end of turn.

Narset's Rebuke deals 5 damage to target creature. Add . If that creature would die this turn, exile it instead.

When this creature enters, suspect up to one target creature you control. (A suspected creature has menace and can't block.)
, Sacrifice a suspected creature: Target creature gets -5/-5 until end of turn.

Target creature gets +2/+2 until end of turn.
Cycling (, Discard this card: Draw a card.)

Surveil 1, then you draw a card and lose 1 life. (To surveil 1, look at the top card of your library. You may put it into your graveyard.)
Void — If a nonland permanent left the battlefield this turn or a spell was warped this turn, draw another card.

Target creature gets +1/+1 and gains double strike until end of turn.

Teamwork 1 (As an additional cost to cast this spell, you may tap any number of creatures you control with total power 1 or more.)
Target creature gains double strike until end of turn. If this spell was cast using teamwork, that creature also gains trample until end of turn.

Flash
Whenever this creature attacks, it connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)

: Creatures you control get +1/+1 until end of turn.

Whenever you draw a card, you may pay . When you do, you may tap or untap target creature.

Choose one —
• Destroy target artifact or enchantment.
• Put a +1/+1 counter on target creature you control. It gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Haste
When this creature enters, create a 1/1 white Ally creature token.

When you unlock this door, tap up to one target creature and put two stun counters on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)
(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

This land enters tapped.
When this land enters, you gain 1 life.
: Add or .

When this creature enters, exile up to two target cards from a single graveyard.
, : Tap target creature.

Whenever you attack, target creature you control gets +1/+0 until end of turn. If that creature is a token, it also gains deathtouch until end of turn.

: Target creature gets +1/+1 and gains flying, first strike, and trample until end of turn.