Slum Reaper

When Slum Reaper enters, each player sacrifices a creature.

Consulate Skygate

Defender
Reach (This creature can block creatures with flying.)

Prakhata Club Security

Soulblade Corrupter

Partner with Soulblade Renewer (When this creature enters, target player may put Soulblade Renewer into their hand from their library, then shuffle.)
Deathtouch
Whenever a creature with a +1/+1 counter on it attacks one of your opponents, that creature gains deathtouch until end of turn.

Kitesail Corsair

Kitesail Corsair has flying as long as it's attacking.

Nirkana Revenant

Whenever you tap a Swamp for mana, add an additional {B}.
{B}: Nirkana Revenant gets +1/+1 until end of turn.

Kraken Hatchling

Opportunity

Shambling Ghoul

Blaring Captain

Partner with Blaring Recruiter (When this creature enters, target player may put Blaring Recruiter into their hand from their library, then shuffle.)
Whenever Blaring Captain attacks, attacking Warriors get +1/+1 until end of turn.

Island

Call to Heel

Return target creature to its owner's hand. Its controller draws a card.

Huddle Up

Assist (Another player can pay up to {2} of this spell's cost.)
Two target players each draw a card.

Assassinate

Saltwater Stalwart

Whenever Saltwater Stalwart deals damage to an opponent, target player draws a card.

Tyrant's Machine

Sickle Dancer

Whenever Sickle Dancer attacks, if your team controls another Warrior, Sickle Dancer gets +1/+1 until end of turn.

Urborg Drake

Flying
Urborg Drake attacks each combat if able.

Soaring Show-Off

Flying
When Soaring Show-Off enters, each player draws a card.

Game Plan

Assist (Another player can pay up to {5} of this spell's cost.)
Each player shuffles their hand and graveyard into their library, then draws seven cards. Exile Game Plan.

Daggerdrome Imp

Flying
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Peregrine Drake

Flying
When Peregrine Drake enters, untap up to five lands.

Hexplate Golem

Swamp

Vampire Charmseeker

Assist (Another player can pay up to {6} of this spell's cost.)
Flying
When Vampire Charmseeker enters, return target instant, sorcery, or creature card from a graveyard to its owner's hand.

Eyeblight Assassin

When Eyeblight Assassin enters, target creature an opponent controls gets -1/-1 until end of turn.