Jackknight

Whenever another artifact you control enters, put a +1/+1 counter on Jackknight. If that artifact is a Contraption, Jackknight gains lifelink until end of turn.

Finders, Keepers

Destroy target creature, then assemble a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Overt Operative

Menace
Whenever Overt Operative deals combat damage to a player, it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Work a Double

Assemble two Contraptions. (Put the top card of your Contraption deck face up onto one of your sprockets. Then repeat this process.)

First Pick

Destroy target artifact or enchantment. Assemble a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Clock of DOOOOOOOOOOOOM!

{4}, {T}: Move the CRANK! counter to your Contraption deck's next sprocket and crank any number of that sprocket's Contraptions.

Filigree Crawler

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

Nimble Innovator

When Nimble Innovator enters, draw a card.

Elegant Edgecrafters

Elegant Edgecrafters can't be blocked by creatures with power 2 or less.
Fabricate 2 (When this creature enters, put two +1/+1 counters on it or create two 1/1 colorless Servo artifact creature tokens.)

Guardian of the Ages

Defender (This creature can't attack.)
When a creature attacks you or a planeswalker you control, if Guardian of the Ages has defender, it loses defender and gains trample.

Creepy Doll

Indestructible
Whenever Creepy Doll deals combat damage to a creature, flip a coin. If you win the flip, destroy that creature.

Crumbling Colossus

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
When Crumbling Colossus attacks, sacrifice it at end of combat.

Cathedral Membrane

({W/P} can be paid with either {W} or 2 life.)
Defender
When Cathedral Membrane dies during combat, it deals 6 damage to each creature it blocked this combat.

Chrome Steed

Metalcraft — Chrome Steed gets +2/+2 as long as you control three or more artifacts.

Arcbound Hybrid

Haste
Modular 2 (This creature enters with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Darksteel Gargoyle

Flying
Indestructible (Damage and effects that say "destroy" don't destroy this creature.)

Whipflare

Whipflare deals 2 damage to each nonartifact creature.

Darksteel Juggernaut

Indestructible
Darksteel Juggernaut's power and toughness are each equal to the number of artifacts you control.
Darksteel Juggernaut attacks each combat if able.

Anvilwrought Raptor

Flying
First strike (This creature deals combat damage before creatures without first strike.)

Reckless Fireweaver

Whenever an artifact you control enters, Reckless Fireweaver deals 1 damage to each opponent.

All Is Dust

Each player sacrifices all permanents they control that are one or more colors.

Chief of the Foundry

Other artifact creatures you control get +1/+1.

Accomplished Automaton

Fabricate 1 (When this creature enters, put a +1/+1 counter on it or create a 1/1 colorless Servo artifact creature token.)

Arms Depot

Whenever you crank Arms Depot, put two +1/+1 counters on target creature.

Boomflinger

Whenever you crank Boomflinger, roll two six-sided dice. Boomflinger deals damage to target player or planeswalker equal to the difference between those results.

Buzz Buggy

Whenever you crank Buzz Buggy, target creature gets +2/+0 and gains trample until end of turn.

Deadly Poison Sampler

Whenever you crank Deadly Poison Sampler, until end of turn, target creature gains "Whenever this creature deals combat damage to a player, destroy target creature that player controls."

Dispatch Dispensary

Whenever you crank Dispatch Dispensary, create a 2/2 black Rogue creature token with menace.

Division Table

Whenever you crank Division Table, target player loses 2 life.

Dogsnail Engine

Whenever you crank Dogsnail Engine, target player gains life equal to the greatest power among creatures you control.

Dual Doomsuits

Whenever you crank Dual Doomsuits, each time a source you control would deal damage this turn, it deals double that damage instead.

Jamming Device

Whenever you crank Jamming Device, creatures target player controls get -1/-1 until end of turn.

Top-Secret Tunnel

Whenever you crank Top-Secret Tunnel, target creature can't be blocked this turn.

Refibrillator

Whenever you crank Refibrillator, return target creature card from your graveyard to your hand.

Rapid Prototyper

Whenever you crank Rapid Prototyper, create an X/X colorless Construct artifact creature token, where X is the number of artifacts you control.

Insufferable Syphon

Whenever you crank Insufferable Syphon, target player discards a card.

Goblin Slingshot

Whenever you crank Goblin Slingshot, creatures you control get +2/+0 and gain trample until end of turn.

Gift Horse

Whenever you crank Gift Horse, roll two six-sided dice. Create a number of 1/1 red Goblin creature tokens equal to the difference between those results.

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