Steam Vents

({T}: Add {U} or {R}.)
As this land enters, you may pay 2 life. If you don't, it enters tapped.

Overgrown Tomb

({T}: Add {B} or {G}.)
As this land enters, you may pay 2 life. If you don't, it enters tapped.

Sacred Foundry

({T}: Add {R} or {W}.)
As this land enters, you may pay 2 life. If you don't, it enters tapped.

Breeding Pool

({T}: Add {G} or {U}.)
As this land enters, you may pay 2 life. If you don't, it enters tapped.

Brad Boimler, Eager Ensign

Lifelink
Whenever Brad Boimler becomes tapped, until end of turn, if one or more counters would be put on a permanent you control, that many plus one of each of those kinds of counters are put on that permanent instead.

Dr. Beverly Crusher

If you gaining life causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.
Whenever you gain life, put a +1/+1 counter on Dr. Crusher.

Consider the Prime Directive

Choose one —
• Interfere — Counter target spell unless its controller pays {3}.
• Observe — Tap up to one target creature and put a stun counter on it. Draw a card. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Captain Kathryn Janeway

You may play an additional land on each of your turns.
Whenever Captain Janeway or another creature you control enters, that creature explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on the creature, then put the card back or put it into your graveyard.)

Salt Vampire

Lifelink
When this creature enters, look at target opponent's hand. You may choose a nonland card from it. If you do, that player exiles that card, then draws a card.

Captain James T. Kirk

Whenever Captain Kirk enters or attacks, choose one. If you have no cards in hand, choose one or more instead.
• Discard a card, then draw a card.
• Create a 1/1 red Officer creature token.
• Creatures you control get +1/+0 until end of turn.

U.S.S. Enterprise-D, Galaxy-Class

Whenever one or more charge counters are put on U.S.S. Enterprise-D for the first time each turn, exile the top card of your library. You may play that card this turn.
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+.)
7+ | Flying, vigilance

Highly Illogical

Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.)
Counter target spell with mana value 2 or less. If this spell was kicked, instead counter target spell.

Hoshi Sato, Exolinguist

Federation — When Hoshi Sato enters, look at the top X cards of your library, where X is the number of creature types among non-Borg creatures you control. Put one of them into your hand and the rest on the bottom of your library in a random order.

Star Trek