Defiant Salvager

Sacrifice an artifact or creature: Put a +1/+1 counter on this creature. Activate only as a sorcery.

Night Market Aeronaut

Flying
Revolt — This creature enters with a +1/+1 counter on it if a permanent left the battlefield under your control this turn.

Lawless Broker

When this creature dies, put a +1/+1 counter on target creature you control.

Ironclad Revolutionary

When this creature enters, you may sacrifice an artifact. If you do, put two +1/+1 counters on this creature and each opponent loses 2 life.

Midnight Entourage

Other Aetherborn you control get +1/+1.
Whenever this creature or another Aetherborn you control dies, you draw a card and you lose 1 life.

Vengeful Rebel

Revolt — When this creature enters, if a permanent left the battlefield under your control this turn, target creature an opponent controls gets -3/-3 until end of turn.

Gifted Aetherborn

Yahenni, Undying Partisan

Haste
Whenever a creature an opponent controls dies, put a +1/+1 counter on Yahenni.
Sacrifice another creature: Yahenni gains indestructible until end of turn.

Aetherborn Marauder

Flying, lifelink
When this creature enters, move any number of +1/+1 counters from other permanents you control onto this creature.

Swamp

Contract Killing

Destroy target creature. Create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.")

Weaponcraft Enthusiast

Fabricate 2 (When this creature enters, put two +1/+1 counters on it or create two 1/1 colorless Servo artifact creature tokens.)

Thriving Moor

This land enters tapped. As it enters, choose a color other than black.
{T}: Add {B} or one mana of the chosen color.

Renegade's Getaway

Target permanent gains indestructible until end of turn. Create a 1/1 colorless Servo artifact creature token. (Effects that say "destroy" don't destroy a permanent with indestructible, and if it's a creature, it can't be destroyed by damage.)

Ichor Wellspring

When this artifact enters or is put into a graveyard from the battlefield, draw a card.