Buzz Buggy

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

Hypnotic Swirly Disc

Whenever you crank this Contraption, target player mills X cards, where X is the number of creatures you control.

Kindly Cognician

Spells you cast that refer to artifacts or Contraptions in their rules text cost {1} less to cast.

Hard Hat Area

Whenever you crank this Contraption, roll two six-sided dice. This Contraption assembles a number of Contraptions equal to the difference between those results. (To assemble a Contraption, put the top card of your Contraption deck face up onto one of your sprockets.)

The Ninth Doctor

Haste
Into the TARDIS — Whenever The Ninth Doctor becomes untapped during your untap step, you get an additional upkeep step after this step.

Third Path Iconoclast

Whenever you cast a noncreature spell, create a 1/1 colorless Soldier artifact creature token.

Narset, Enlightened Exile

Creatures you control have prowess.
Whenever Narset attacks, exile target noncreature, nonland card with mana value less than Narset's power from a graveyard and copy it. You may cast the copy without paying its mana cost.

Pet Project

Whenever you crank this Contraption, put target creature card from an opponent's graveyard onto the battlefield under your control.

Applied Aeronautics

Whenever you crank this Contraption, until end of turn, target creature gets +1/+0, gains flying, and becomes an artifact in addition to its other types.

Wrench-Rigger

When this creature enters, it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Gnomeball Machine

Whenever you crank this Contraption, create two 1/1 colorless Gnome artifact creature tokens.

Steamflogger Temp

{6}, {T}: This creature assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Midlife Upgrade

As an additional cost to cast this spell, sacrifice X Contraptions.
Assemble X plus one Contraptions. (To assemble a Contraption, put the top card of your Contraption deck face up onto one of your sprockets.)

Mad Science Fair Project

{T}: Roll a six-sided die. On a 3 or lower, target player adds {C}. Otherwise, that player adds one mana of any color they choose.

Deadly Poison Sampler

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

Widget Contraption

Whenever you crank this Contraption, it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Border Guardian

Whenever you cast a silver-bordered spell, put a +1/+1 counter on this creature.
Whenever you cast a black-bordered spell, this creature can't be blocked this turn.
Whenever you cast a white-bordered spell, this creature gains double strike until end of turn.

Everythingamajig

{T}: Add one mana of any color.
{1}, {T}: Say the flavor text on a card in your hand. Target opponent guesses that card's name. You may reveal that card. If you do and your opponent guessed wrong, draw a card.
{8}, {T}: This artifact deals 12 damage to target creature.

Incite Insight

Assemble X Contraptions. (To assemble a Contraption, put the top card of your Contraption deck face up onto one of your sprockets.)

Duplication Device

Whenever you crank this Contraption, until end of turn, target creature becomes a copy of any creature on the battlefield, except it's an artifact in addition to its other types.

Aerial Toastmaster

Flying
{3}{W}, Sacrifice another artifact: This creature assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Sai, Master Thopterist

Whenever you cast an artifact spell, create a 1/1 colorless Thopter artifact creature token with flying.
{1}{U}, Sacrifice two artifacts: Draw a card.

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.

Jeskai Ascendancy

Whenever you cast a noncreature spell, creatures you control get +1/+1 until end of turn. Untap those creatures.
Whenever you cast a noncreature spell, you may draw a card. If you do, discard a card.

Neural Network

Whenever you crank this Contraption, gain control of target creature an opponent controls with power less than or equal to the number of creature cards in its controller's graveyard until end of turn. Untap that creature. It gains haste until end of turn.

Riveting Rigger

When this creature enters, you may sacrifice another artifact. If you do, put two +1/+1 counters on this creature and it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Dispatch

Tap target creature.
Metalcraft — If you control three or more artifacts, exile that creature.

Division Table

Whenever you crank this Contraption, target player loses 2 life.

Goblin Slingshot

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

Arms Depot

Whenever you crank this Contraption, put two +1/+1 counters on target creature.

Spell Suck

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

Auto-Key

Whenever you crank this Contraption, until end of turn, target creature becomes an artifact in addition to its other types and gains "{T}: You gain 3 life."

Boomflinger

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

Thoughtcast

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
Draw two cards.

Steamflogger Boss

Other Riggers you control get +1/+0 and have haste.
If a Rigger you control would assemble a Contraption, it assembles two Contraptions instead.

Turbo-Thwacking Auto-Hammer

Whenever you crank this Contraption, target creature gains double strike until end of turn.

Jackknight

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

Dispatch Dispensary

Whenever you crank this Contraption, create a 2/2 black Rogue creature token with menace.

Contraption Cannon

{2}, Sacrifice this artifact: It deals damage to any target equal to the number of Contraptions you control.

Inflation Station

Whenever you crank this Contraption, target creature gets +3/+3 until end of turn.

Lackey Recycler

Whenever you crank this Contraption, put target creature card from your graveyard on top of your library.

Garbage Elemental

When this creature enters, it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)
Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

Cogmentor

Flying
{4}: Reassemble target Contraption you control. (Move it onto another one of your sprockets.)

Gift Horse

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

Accessories to Murder

Whenever you crank this Contraption, target creature gets +X/+0 until end of turn, where X is the number of creatures you control.

Fieldmist Borderpost

You may pay {1} and return a basic land you control to its owner's hand rather than pay this spell's mana cost.
This artifact enters tapped.
{T}: Add {W} or {U}.

Dual Doomsuits

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

My First Tome

{1}, {T}: Say the flavor text on a card in your hand. Target opponent guesses that card's name. You may reveal that card. If you do and they guessed wrong, you draw a card.

Chipper Chopper

Flying
When this creature enters, you may sacrifice another artifact. If you do, put two +1/+1 counters on this creature and it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Bee-Bee Gun

Whenever you crank this Contraption, until end of turn, target creature gains "{2}: This creature fights another target creature."

Paradox Haze

Enchant player
At the beginning of enchanted player's first upkeep each turn, that player gets an additional upkeep step after this step.

Dogsnail Engine

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

Very Cryptic Command

Choose two —
• Switch target creature's power and toughness until end of turn.
• Target creature can't be blocked this turn.
• Draw a card. If that card's art is by Wayne England, you may reveal it and draw another card.
• Assemble a Contraption.

Crafty Octopus

When this creature enters, this creature assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Dictation Quillograph

Whenever you crank this Contraption, until end of turn, target creature gains "Whenever this creature deals combat damage to a player, you may draw a card. If you do, discard a card."

Steamflogger of the Month

When this creature enters, it assembles a Contraption for each Contraption you control. (To assemble a Contraption, put the top card of your Contraption deck face up onto one of your sprockets.)