Merfolk Mesmerist

This creature has flying as long as you control an artifact. (It can't be blocked except by creatures with flying or reach.)

Menace (This creature can't be blocked except by two or more creatures.) Whenever Kirk attacks while creatures you control have total power 8 or greater, exile the top card of your library. You may play that card this turn.

Instant and sorcery spells you cast cost 1 less to cast. Whenever you cast an instant or sorcery spell during your turn, flip a coin. If you lose the flip, Ral deals 1 damage to you. If you win the flip, you may exile Ral. If you do, return him to the battlefield transformed under his owner's control.

Creatures you control gain indestructible until end of turn. Addendum — If you cast this spell during your main phase, put a +1/+1 counter on each of those creatures and they gain vigilance until end of turn.

Whenever this creature deals combat damage to a player, draw a card.

Flying, first strike When this creature enters, destroy up to one target nonbasic land. Its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle.

Sacrifice a creature: This creature gets +2/+2 until end of turn.

Artifact creatures you control get +2/+0. When Borg Queen enters, assimilate target creature card from an opponent's graveyard. (Put it onto the battlefield under your control with a +1/+1 counter. It's a Borg artifact creature and loses all other creature types.)