Shriekhorn

This artifact enters with three charge counters on it.
{T}, Remove a charge counter from this artifact: Target player mills two cards.

Deconstruction Hammer

Equipped creature gets +1/+1 and has "{3}, {T}, Sacrifice Deconstruction Hammer: Destroy target artifact or enchantment."
Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Dire Mimic

Flash
{T}, Sacrifice this artifact: Add one mana of any color.
{3}: This artifact becomes a Shapeshifter artifact creature with base power and toughness 5/5 until end of turn.

Commander's Sphere

{T}: Add one mana of any color in your commander's color identity.
Sacrifice this artifact: Draw a card.

Soul Warden

Whenever another creature enters, you gain 1 life.

Expedition Map

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

Ornithopter of Paradise

Ghoulcaller's Bell

Alloy Myr

Arcbound Mouser

Lifelink
Modular 1 (This creature enters with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Skyscanner

Flying
When this creature enters, draw a card.

Myr Sire

When this creature dies, create a 1/1 colorless Phyrexian Myr artifact creature token.

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.

Angelic Purge

As an additional cost to cast this spell, sacrifice a permanent.
Exile target artifact, creature, or enchantment.

Urza's Power Plant

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

Vial of Dragonfire

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

Felidar Cub

Sacrifice this creature: Destroy target enchantment.

Trusty Packbeast

When this creature enters, return target artifact card 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.

Myr Moonvessel

Terrarion

This artifact enters tapped.
{2}, {T}, Sacrifice this artifact: Add two mana in any combination of colors.
When this artifact is put into a graveyard from the battlefield, draw a card.

Mana Tithe

Counter target spell unless its controller pays {1}.

Impassioned Orator

Whenever another creature you control enters, you gain 1 life.

Conjurer's Bauble

{T}, Sacrifice this artifact: Put up to one target card from your graveyard on the bottom of your library. Draw a card.

Self-Assembler

When this creature enters, you may search your library for an Assembly-Worker creature card, reveal it, put it into your hand, then shuffle.

Have

Foundry Inspector

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

Teshar, Ancestor's Apostle

Flying
Whenever you cast a historic spell, return target creature card with mana value 3 or less from your graveyard to the battlefield. (Artifacts, legendaries, and Sagas are historic.)

Wedding Invitation

When this artifact enters, draw a card.
{T}, Sacrifice this artifact: Target creature can't be blocked this turn. If it's a Vampire, it also gains lifelink until end of turn.

Disenchant

Feldon's Cane

{T}, Exile this artifact: Shuffle your graveyard into your library.

Campus Guide

When this creature enters, you may search your library for a basic land card, reveal it, then shuffle and put that card on top.

Tinker's Tote

When this artifact enters, create two 1/1 colorless Gnome artifact creature tokens.
{W}, Sacrifice this artifact: You gain 3 life.

Arcbound Worker

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

Arcbound Prototype

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.)

Workshop Assistant

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

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Voltaic Servant

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

Scorn Effigy

Foretell {0} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Celestial Flare

Target player sacrifices an attacking or blocking creature of their choice.

Mind Stone

{T}: Add {C}.
{1}, {T}, Sacrifice this artifact: Draw a card.

Spirited Companion

Myr Retriever

Perilous Myr

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

Urza's Mine

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

Wanderer's Twig

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

Oasis Gardener

When this creature enters, you gain 2 life.
{T}: Add one mana of any color.

Phyrexian Walker

Palace Sentinels

When this creature enters, you become the monarch.

Glint Hawk

Flying
When this creature enters, sacrifice it unless you return an artifact you control to its owner's hand.

Myr Scrapling

Sacrifice this creature: Put a +1/+1 counter on target creature.

Monk Realist

When this creature enters, destroy target enchantment.

Glorifier of Suffering

When this creature enters, you may sacrifice another creature or artifact. When you do, put a +1/+1 counter on each of up to two target creatures.

Thermal Navigator

Sacrifice an artifact: This creature gains flying until end of turn.

Tormod's Cryptkeeper

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

Tower Worker

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

Kor Celebrant

Whenever this creature or another creature you control enters, you gain 1 life.

Ritual of Restoration

Return target artifact card from your graveyard to your hand.

Rusted Slasher

Sacrifice an artifact: Regenerate this creature.

Urza's Tower

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

Mine Worker

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

Runed Servitor

When this creature dies, each player draws a card.

Lotus Petal

{T}, Sacrifice this artifact: Add one mana of any color.

Auramancer

When this creature enters, you may return target enchantment card from your graveyard to your hand.

Novice Inspector

When this creature enters, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")

Generous Gift

Destroy target permanent. Its controller creates a 3/3 green Elephant creature token.

Walking Atlas

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

Devout Monk

When this creature enters, you gain 1 life.

Traveler's Amulet

Herbal Poultice

{3}, Sacrifice this artifact: Regenerate target creature.

Luminous Phantom

Flying
Whenever another creature you control leaves the battlefield, you gain 1 life.
If Luminous Phantom would be put into a graveyard from anywhere, exile it instead.

Lunarch Veteran

Whenever another creature you control enters, you gain 1 life.
Disturb {1}{W} (You may cast this card from your graveyard transformed for its disturb cost.)

Lunarch Veteran // Luminous Phantom

Elsewhere Flask

When this artifact enters, draw a card.
Sacrifice this artifact: Choose a basic land type. Each land you control becomes that type until end of turn.

Tormod's Crypt

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

Cogwork Assembler

{7}: Create a token that's a copy of target artifact. That token gains haste. Exile it at the beginning of the next end step.

Plains

Cathodion

Priest of Ancient Lore

When this creature enters, you gain 1 life and draw a card.

Chromatic Star

{1}, {T}, Sacrifice this artifact: Add one mana of any color.
When this artifact is put into a graveyard from the battlefield, draw a card.

Patchwork Gnomes

Discard a card: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Filigree Familiar

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

Inspiring Overseer

Flying
When this creature enters, you gain 1 life and draw a card.

Soul's Attendant

Whenever another creature enters, you may gain 1 life.

Welding Jar

Sacrifice this artifact: Regenerate target artifact.

Fanatical Devotion

Sacrifice a creature: Regenerate target creature.

Leonin Elder

Whenever an artifact enters, you may gain 1 life.

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.

Sparring Construct

When this creature dies, put a +1/+1 counter on target creature you control.

Tragic Poet

{T}, Sacrifice this creature: Return target enchantment card from your graveyard to your hand.