Power Plant Worker

{3}: This creature gets +2/+2 until end of turn. If you control creatures named Mine Worker and Tower Worker, put two +1/+1 counters on this creature instead. Activate only once each turn.

Universal Solvent

{7}, {T}, Sacrifice this artifact: Destroy target permanent.

Meteorite

When this artifact enters, it deals 2 damage to any target.
{T}: Add one mana of any color.

Scour from Existence

Tormod's Cryptkeeper

Vigilance
{T}, Sacrifice this creature: Exile target player's graveyard.

Perilous Myr

When this creature dies, it deals 2 damage to any target.

Urza's Power Plant

{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.

Aetherjacket

Flying, vigilance
{2}, {T}, Sacrifice this creature: Destroy another target artifact. Activate only as a sorcery.

Eldrazi Devastator

Wayfarer's Bauble

{2}, {T}, Sacrifice this artifact: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Thundersteel Colossus

Trample, haste
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.)

Ticket Tortoise

Defender
When this creature enters, if an opponent controls more lands than you, you create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Myr Retriever

When this creature dies, return another target artifact card from your graveyard to your hand.

Tower Worker

Reach
{T}: Add {C}. If you control creatures named Mine Worker and Power Plant Worker, add {C}{C}{C} instead.

Traveler's Amulet

{1}, Sacrifice this artifact: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Filigree Crawler

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

Darksteel Citadel

Staunch Throneguard

Vigilance
When this creature enters, you become the monarch.

Pardic Wanderer

Filigree Familiar

When this creature enters, you gain 2 life.
When this creature dies, draw a card.

Sojourner's Companion

Affinity for artifacts
Artifact landcycling {2} ({2}, Discard this card: Search your library for an artifact land card, reveal it, put it into your hand, then shuffle.)

Swiftgear Drake

Flying, haste
When this creature enters, put up to one target card from a graveyard on the bottom of its owner's library.

Warden of Geometries

Vigilance
{T}: Add {C}. ({C} represents colorless mana.)

Saheeli's Silverwing

Flying
When this creature enters, look at the top card of target opponent's library.

Chardalyn Dragon

It That Heralds the End

Colorless spells you cast with mana value 7 or greater cost {1} less to cast.
Other colorless creatures you control get +1/+1.

Foundry Assembler

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)

Skittering Surveyor

When this creature enters, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Night Market Guard

This creature can block an additional creature each combat.

Decanter of Endless Water

You have no maximum hand size.
{T}: Add one mana of any color.

Cloak of the Bat

Equipped creature has flying and haste.
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Camera Launcher

Exhaust — {3}: Put a +1/+1 counter on this creature. Create a 1/1 colorless Thopter artifact creature token with flying. (Activate each exhaust ability only once.)

Sisay's Ring

Howling Golem

Whenever this creature attacks or blocks, each player draws a card.

Haunted Fengraf

{T}: Add {C}.
{3}, {T}, Sacrifice this land: Return a creature card at random from your graveyard to your hand.

Pilgrim's Eye

Flying
When this creature enters, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Voltaic Servant

At the beginning of your end step, untap target artifact.

Opaline Unicorn

Ornithopter of Paradise

Myr Enforcer

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

Wastes

Frogmite

Explosive Apparatus

{3}, {T}, Sacrifice this artifact: It deals 2 damage to any target.

Renegade Map

This artifact enters tapped.
{T}, Sacrifice this artifact: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Manalith

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.)

Shardless Outlander

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Basic landcycling {2} ({2}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

Manakin

Clockwork Fox

When this creature leaves the battlefield, you draw two cards and each opponent draws a card.

Searchlight Companion

Flying
When this creature enters, create a 1/1 colorless Spirit creature token.

Kozilek's Pathfinder

{C}: Target creature can't block this creature this turn. ({C} represents colorless mana.)

Urn of Godfire

{2}: Add one mana of any color.
{6}, {T}, Sacrifice this artifact: Destroy target creature or enchantment.

Goblin Firebomb

Flash
{7}, {T}, Sacrifice this artifact: Destroy target permanent.

Workshop Assistant

Hedron Crawler

{T}: Add {C}. ({C} represents colorless mana.)

Tocasia's Dig Site

{T}: Add {C}.
{3}, {T}: Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Ornithopter

Sunscorched Desert

When this land enters, it deals 1 damage to target player or planeswalker.
{T}: Add {C}.

Scrap Compactor

{3}, {T}, Sacrifice this artifact: It deals 3 damage to target creature.
{6}, {T}, Sacrifice this artifact: Destroy target creature or Vehicle.

Bumbleflower's Sharepot

When this artifact enters, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.")
{5}, {T}, Sacrifice this artifact: Destroy target nonland permanent. Activate only as a sorcery.

Hand of Emrakul

You may sacrifice four Eldrazi Spawn rather than pay this spell's mana cost.
Annihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent of their choice.)

Millennial Gargoyle

Urza's Tower

{T}: Add {C}. If you control an Urza's Mine and an Urza's Power-Plant, add {C}{C}{C} instead.

Foundry Inspector

Artifact spells you cast cost {1} less to cast.

Thaumaturge's Familiar

Flying
When this creature enters, scry 1.

Mine Worker

{T}: You gain 1 life. If you control creatures named Power Plant Worker and Tower Worker, you gain 3 life instead.

Maelstrom Colossus

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Roving Keep

Defender
{7}: This creature gets +2/+0 and gains trample until end of turn. It can attack this turn as though it didn't have defender.

Urza's Mine

{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.

Ulamog's Crusher

Annihilator 2 (Whenever this creature attacks, defending player sacrifices two permanents of their choice.)
This creature attacks each combat if able.