Troubling Tribbles

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

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

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

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.

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.

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

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

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