Kezzerdrix

First strike
At the beginning of your upkeep, if your opponents control no creatures, this creature deals 4 damage to you.

Carrion Feeder

This creature can't block.
Sacrifice a creature: Put a +1/+1 counter on this creature.

Scavenging Ghoul

At the beginning of each end step, put a corpse counter on this creature for each creature that died this turn.
Remove a corpse counter from this creature: Regenerate this creature.

Baleful Strix

Flying, deathtouch
When this creature enters, draw a card.

Sol Ring

Deadeye Navigator

Soulbond (You may pair this creature with another unpaired creature when either enters. They remain paired for as long as you control both of them.)
As long as Deadeye Navigator is paired with another creature, each of those creatures has "{1}{U}: Exile this creature, then return it to the battlefield under your control."

Tiger-Dillo

This creature can't attack or block unless you control another creature with power 4 or greater.

Admiral Beckett Brass

Other Pirates you control get +1/+1.
At the beginning of your end step, gain control of target nonland permanent controlled by a player who was dealt combat damage by three or more Pirates this turn.

Swarm, Being of Bees

Flash
Flying
Mayhem {B} (You may cast this card from your graveyard for {B} if you discarded it this turn. Timing rules still apply.)

Viscera Seer

Sacrifice a creature: Scry 1. (Look at the top card of your library. You may put that card on the bottom.)