Crackdown Construct

Scrap Trawler

Artifact Creature — Construct (3/2)

Whenever Scrap Trawler or another artifact you control is put into a graveyard from the battlefield, return to your hand target artifact card in your graveyard with lesser mana value.

Filigree Crawler

Artifact Creature — Insect (2/2)

When Filigree Crawler dies, create a 1/1 colorless Thopter artifact creature token with flying.

Foundry Assembler

Artifact Creature — Assembly-Worker (3/3)

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)

Treasure Keeper

Artifact Creature — Construct (3/3)

When Treasure Keeper dies, reveal cards from the top of your library until you reveal a nonland card with mana value 3 or less. You may cast that card without paying its mana cost. Put all revealed cards not cast this way on the bottom of your library in a random order.

Mobile Garrison

Artifact — Vehicle

Whenever Mobile Garrison attacks, untap another target artifact or creature you control.
Crew 2 (Tap any number of creatures you control with total power 2 or more: This Vehicle becomes an artifact creature until end of turn.)

Untethered Express

Artifact — Vehicle

Trample
Whenever Untethered Express attacks, put a +1/+1 counter on it.
Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

Augmenting Automaton

Artifact Creature — Construct (1/1)

: Augmenting Automaton gets +1/+1 until end of turn.

Cogwork Assembler

Artifact Creature — Assembly-Worker (2/3)

: Create a token that's a copy of target artifact. That token gains haste. Exile it at the beginning of the next end step.

Night Market Guard

Artifact Creature — Construct (3/1)

Night Market Guard can block an additional creature each combat.

Aethersphere Harvester

Artifact — Vehicle

Flying
When Aethersphere Harvester enters the battlefield, you get (two energy counters).
Pay : Aethersphere Harvester gains lifelink until end of turn.
Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

Daredevil Dragster

Artifact — Vehicle

At end of combat, if Daredevil Dragster attacked or blocked this combat, put a velocity counter on it. Then if it has two or more velocity counters on it, sacrifice it and draw two cards.
Crew 2 (Tap any number of creatures you control with total power 2 or more: This Vehicle becomes an artifact creature until end of turn.)

Irontread Crusher

Artifact — Vehicle

Crew 3 (Tap any number of creatures you control with total power 3 or more: This Vehicle becomes an artifact creature until end of turn.)

Peacewalker Colossus

Artifact — Vehicle

: Another target Vehicle you control becomes an artifact creature until end of turn.
Crew 4 (Tap any number of creatures you control with total power 4 or more: This Vehicle becomes an artifact creature until end of turn.)

Weldfast Engineer

Creature — Human Artificer (3/3)

At the beginning of combat on your turn, target artifact creature you control gets +2/+0 until end of turn.

Prizefighter Construct

Artifact Creature — Construct (6/2)

Reservoir Walker

Artifact Creature — Construct (3/3)

When Reservoir Walker enters the battlefield, you gain 3 life and get (three energy counters).

Tezzeret's Simulacrum

Artifact Creature — Golem (2/3)

: Target opponent loses 1 life. If you control a Tezzeret planeswalker, that player loses 3 life instead.

Watchful Automaton

Artifact Creature — Construct (2/2)

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

Aetherstream Leopard

Creature — Cat (2/3)

Trample
When Aetherstream Leopard enters the battlefield, you get (an energy counter).
Whenever Aetherstream Leopard attacks, you may pay . If you do, it gets +2/+0 until end of turn.

Inspiring Statuary

Artifact

Nonartifact spells you cast have improvise. (Your artifacts can help cast those spells. Each artifact you tap after you're done activating mana abilities pays for .)