Optical Optimizer

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."

Hard Hat Area

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.)

Cogmentor

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

Transmogrifying Licid

{1}, {T}: Transmogrifying Licid loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. You may pay {1} to end this effect.
Enchanted creature gets +1/+1 and is an artifact in addition to its other types.

Forcemage Advocate

{T}: Return target card from an opponent's graveyard to their hand. Put a +1/+1 counter on target creature.

Auto-Key

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."

Dross Scorpion

Whenever Dross Scorpion or another artifact creature dies, you may untap target artifact.

Ashnod's Transmogrant

{T}, Sacrifice Ashnod's Transmogrant: Put a +1/+1 counter on target nonartifact creature. That creature becomes an artifact in addition to its other types.

Fangren Marauder

Whenever an artifact is put into a graveyard from the battlefield, you may gain 5 life.

Myr Retriever

When Myr Retriever dies, return another target artifact card from your graveyard to your hand.

Thran Forge

{2}: Until end of turn, target nonartifact creature gets +1/+0 and becomes an artifact in addition to its other types.

Nullmage Advocate

{T}: Return two target cards from an opponent's graveyard to their hand. Destroy target artifact or enchantment.

Dokai, Weaver of Life

{4}{G}{G}, {T}: Create an X/X green Elemental creature token, where X is the number of lands you control.

Budoka Gardener

{T}: You may put a land card from your hand onto the battlefield. If you control ten or more lands, flip Budoka Gardener.

Budoka Gardener // Dokai, Weaver of Life

Terrain Generator

{T}: Add {C}.
{2}, {T}: You may put a basic land card from your hand onto the battlefield tapped.

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.)

Liquimetal Coating

{T}: Target permanent becomes an artifact in addition to its other types until end of turn.

Scaled Herbalist

{T}: You may put a land card from your hand onto the battlefield.

Applied Aeronautics

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.

Seedborn Muse

Untap all permanents you control during each other player's untap step.

Glissa Sunseeker

First strike
{T}: Destroy target artifact if its mana value is equal to the amount of unspent mana you have.

Walking Atlas

Myr Landshaper

{T}: Target land becomes an artifact in addition to its other types until end of turn.

Quest for Renewal

Whenever a creature you control becomes tapped, you may put a quest counter on Quest for Renewal.
As long as there are four or more quest counters on Quest for Renewal, untap all creatures you control during each other player's untap step.

Joyride Rigger

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

Viridian Revel

Whenever an artifact is put into an opponent's graveyard from the battlefield, you may 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.

Tread Mill

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.

Holistic Wisdom

{2}, Exile a card from your hand: Return target card from your graveyard to your hand if it shares a card type with the card exiled this way. (Artifact, battle, creature, enchantment, kindred, instant, land, planeswalker, and sorcery are card types.)

Patron of the Orochi

Snake offering (You may cast this spell any time you could cast an instant by sacrificing a Snake and paying the difference in mana costs between this and the sacrificed Snake. Mana cost includes color.)
{T}: Untap all Forests and all green creatures. Activate only once each turn.

Sakura-Tribe Scout

Widget 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.)

Mycosynth Lattice

All permanents are artifacts in addition to their other types.
All cards that aren't on the battlefield, spells, and permanents are colorless.
Players may spend mana as though it were mana of any color.

Llanowar Scout

Curse of Bounty

Enchant player
Whenever enchanted player is attacked, untap all nonland permanents you control. Each opponent attacking that player untaps all nonland permanents they control.

Duplication Device

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.

Seeker of Skybreak

Buried Ruin

{T}: Add {C}.
{2}, {T}, Sacrifice Buried Ruin: Return target artifact card from your graveyard to your hand.

Liquimetal Torque

{T}: Add {C}.
{T}: Target nonland permanent becomes an artifact in addition to its other types until end of turn.

Copperhorn Scout

Whenever Copperhorn Scout attacks, untap each other creature you control.

Awakening

At the beginning of each upkeep, untap all creatures and lands.

Once and Future

Return target card from your graveyard to your hand. Put up to one other target card from your graveyard on top of your library. Exile Once and Future.
Adamant — If at least three green mana was spent to cast this spell, instead return those cards to your hand and exile Once and Future.

Finale of Devastation

Search your library and/or graveyard for a creature card with mana value X or less and put it onto the battlefield. If you search your library this way, shuffle. If X is 10 or more, creatures you control get +X/+X and gain haste until end of turn.

Fungal Rebirth

Return target permanent card from your graveyard to your hand. If a creature died this turn, create two 1/1 green Saproling creature tokens.

Ichor Wellspring

When Ichor Wellspring enters or is put into a graveyard from the battlefield, draw a card.