Whenever you crank Accessories to Murder, target creature gets +X/+0 until end of turn, where X is the number of creatures you control.
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Applied Aeronautics
Artifact - Contraption
Whenever you crank Applied Aeronautics, until end of turn, target creature gets +1/+0, gains flying, and becomes an artifact in addition to its other types.
--
Arms Depot
Artifact - Contraption
Whenever you crank Arms Depot, put two +1/+1 counters on target creature.
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Auto-Key
Artifact - Contraption
Whenever you crank Auto-Key, until end of turn, target creature becomes an artifact in addition to its other types and gains "{T}: You gain 3 life."
--
Boomflinger
Artifact - Contraption
Whenever you crank Boomflinger, roll two six-sided dice. Boomflinger deals damage to target player or planeswalker equal to the difference between those results.
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Buzz Buggy
Artifact - Contraption
Whenever you crank Buzz Buggy, target creature gets +2/+0 and gains trample until end of turn.
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Deadly Poison Sampler
Artifact - Contraption
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."
--
Dictation Quillograph
Artifact - Contraption
Whenever you crank Dictation Quillograph, 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."
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Dispatch Dispensary
Artifact - Contraption
Whenever you crank Dispatch Dispensary, create a 2/2 black Rogue creature token with menace.
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Division Table
Artifact - Contraption
Whenever you crank Division Table, target player loses 2 life.
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Dogsnail Engine
Artifact - Contraption
Whenever you crank Dogsnail Engine, target player gains life equal to the greatest power among creatures you control.
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Dual Doomsuits
Artifact - Contraption
Whenever you crank Dual Doomsuits, each time a source you control would deal damage this turn, it deals double that damage instead.
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Duplication Device
Artifact - Contraption
Whenever you crank Duplication Device, 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.
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Faerie Aerie
Artifact - Contraption
Whenever you crank Faerie Aerie, create two 1/1 blue Faerie Spy creature tokens with flying, haste, and "Whenever this creature deals combat damage to a player, draw a card." Exile them at the beginning of the next end step.
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Genetic Recombinator
Artifact - Contraption
Whenever you crank Genetic Recombinator, up to two target creatures each get +2/+2 until end of turn.
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Gift Horse
Artifact - Contraption
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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Gnomeball Machine
Artifact - Contraption
Whenever you crank Gnomeball Machine, create two 1/1 colorless Gnome artifact creature tokens.
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Goblin Slingshot
Artifact - Contraption
Whenever you crank Goblin Slingshot, creatures you control get +2/+0 and gain trample until end of turn.
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Guest List
Artifact - Contraption
Whenever you crank Guest List, target creature gets -X/-X until end of turn, where X is the number of creature cards in its controller's graveyard.
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Hard Hat Area
Artifact - Contraption
Whenever you crank Hard Hat Area, roll two six-sided dice. Hard Hat Area 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.)
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Head Banger
Artifact - Contraption
Whenever you crank Head Banger, target creature must be blocked this turn if able.
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Hypnotic Swirly Disc
Artifact - Contraption
Whenever you crank Hypnotic Swirly Disc, target player mills X cards, where X is the number of creatures you control.
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Inflation Station
Artifact - Contraption
Whenever you crank Inflation Station, target creature gets +3/+3 until end of turn.
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Insufferable Syphon
Artifact - Contraption
Whenever you crank Insufferable Syphon, target player discards a card.
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Jamming Device
Artifact - Contraption
Whenever you crank Jamming Device, creatures target player controls get -1/-1 until end of turn.
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Lackey Recycler
Artifact - Contraption
Whenever you crank Lackey Recycler, put target creature card from your graveyard on top of your library.
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Mandatory Friendship Shackles
Artifact - Contraption
Whenever you crank Mandatory Friendship Shackles, target creature gets -1/-1 until end of turn.
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Neural Network
Artifact - Contraption
Whenever you crank Neural Network, 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.
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Oaken Power Suit
Artifact - Contraption
Whenever you crank Oaken Power Suit, target creature gets +X/+X until end of turn, where X is the greatest power among creatures you control.
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Optical Optimizer
Artifact - Contraption
Whenever you crank Optical Optimizer, until end of turn, target creature becomes an artifact in addition to its other types and gains "{T}: Draw a card."
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Pet Project
Artifact - Contraption
Whenever you crank Pet Project, put target creature card from an opponent's graveyard onto the battlefield under your control.
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Quick-Stick Lick Trick
Artifact - Contraption
Whenever you crank Quick-Stick Lick Trick, target creature gets +1/+1 and gains lifelink until end of turn.
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Rapid Prototyper
Artifact - Contraption
Whenever you crank Rapid Prototyper, create an X/X colorless Construct artifact creature token, where X is the number of artifacts you control.
--
Record Store
Artifact - Contraption
Whenever you crank Record Store, look at the top X cards of your library, where X is the number of artifacts you control. Put one of those cards into your hand and the rest on the bottom of your library in a random order.
--
Refibrillator
Artifact - Contraption
Whenever you crank Refibrillator, return target creature card from your graveyard to your hand.
--
Sundering Fork
Artifact - Contraption
Whenever you crank Sundering Fork, destroy target artifact.
--
Thud-for-Duds
Artifact - Contraption
Whenever you crank Thud-for-Duds, roll two six-sided dice. Thud-for-Duds deals damage to target creature equal to the difference between those results.
--
Top-Secret Tunnel
Artifact - Contraption
Whenever you crank Top-Secret Tunnel, target creature can't be blocked this turn.
--
Tread Mill
Artifact - Contraption
Whenever you crank Tread Mill, until end of turn, target creature gets +1/+2, gains vigilance, and becomes an artifact in addition to its other types.
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Turbo-Thwacking Auto-Hammer
Artifact - Contraption
Whenever you crank Turbo-Thwacking Auto-Hammer, target creature gains double strike until end of turn.
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Twiddlestick Charger
Artifact - Contraption
Whenever you crank Twiddlestick Charger, tap or untap target creature.
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Widget Contraption
Artifact - Contraption
Whenever you crank Widget Contraption, it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)