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.)

Staunch Throneguard

Vigilance
When Staunch Throneguard enters, you become the monarch.

Junktroller

Defender
{T}: Put target card from a graveyard on the bottom of its owner's library.

Memnite

Skyscanner

Flying
When Skyscanner enters, draw a card.

Trash for Treasure

As an additional cost to cast this spell, sacrifice an artifact.
Return target artifact card from your graveyard to the battlefield.

Triplicate Titan

Flying, vigilance, trample
When Triplicate Titan dies, create a 3/3 colorless Golem artifact creature token with flying, a 3/3 colorless Golem artifact creature token with vigilance, and a 3/3 colorless Golem artifact creature token with trample.

Ironhoof Boar

Trample, haste
Channel — {1}{R}, Discard Ironhoof Boar: Target creature gets +3/+1 and gains trample until end of turn.

Myr Sire

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

Traxos, Scourge of Kroog

Trample
Traxos, Scourge of Kroog enters tapped and doesn't untap during your untap step.
Whenever you cast a historic spell, untap Traxos. (Artifacts, legendaries, and Sagas are historic.)

Anvilwrought Raptor

Flying
First strike (This creature deals combat damage before creatures without first strike.)

Scrap Trawler

Whenever Scrap Trawler or another artifact you control is put into a graveyard from the battlefield, return to your hand target artifact card in your graveyard with lesser mana value.

Wake the Past

Return all artifact cards from your graveyard to the battlefield. They gain haste until end of turn.

Runed Servitor

When Runed Servitor dies, each player draws a card.

Bronze Guardian

Double strike
Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.)
Other artifacts you control have ward {2}.
Bronze Guardian's power is equal to the number of artifacts you control.

Patchwork Automaton

Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.)
Whenever you cast an artifact spell, put a +1/+1 counter on Patchwork Automaton.

Howling Golem

Whenever Howling Golem attacks or blocks, each player draws a card.

Gilded Sentinel

Teferi's Sentinel

As long as you control a Teferi planeswalker, Teferi's Sentinel gets +4/+0.

Skyclave Sentinel

Kicker {4} (You may pay an additional {4} as you cast this spell.)
Flying, defender
If Skyclave Sentinel was kicked, it enters with two +1/+1 counters on it.
As long as Skyclave Sentinel has a +1/+1 counter on it, it can attack as though it didn't have defender.

Shock

Iron Golem

Vigilance
Iron Golem attacks or blocks each combat if able.

Myr Retriever

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

Stone Golem

Meteor Golem

When this creature enters, destroy target nonland permanent an opponent controls.

Verdurous Gearhulk

Trample
When Verdurous Gearhulk enters, distribute four +1/+1 counters among any number of target creatures you control.

Junk Diver

Flying
When Junk Diver dies, return another target artifact card from your graveyard to your hand.

Gearsmith Guardian

Gearsmith Guardian gets +2/+0 as long as you control a blue creature.

Vial of Dragonfire

{2}, {T}, Sacrifice Vial of Dragonfire: It deals 2 damage to target creature.

Torrential Gearhulk

Flash
When Torrential Gearhulk enters, you may cast target instant card from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead.

Steel Overseer

{T}: Put a +1/+1 counter on each artifact creature you control.

Sea Gate Colossus

This spell costs {1} less to cast for each creature in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

Forgotten Sentinel

Crumbling Colossus

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
When Crumbling Colossus attacks, sacrifice it at end of combat.

Iron Bully

Menace (This creature can't be blocked except by two or more creatures.)
When Iron Bully enters, put a +1/+1 counter on target creature.

Pardic Wanderer

Searchlight Companion

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

Chief of the Foundry

Other artifact creatures you control get +1/+1.

Ruin Grinder

Menace
When Ruin Grinder dies, each player may discard their hand and draw seven cards.
Mountaincycling {2} ({2}, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.)

Eater of Days

Flying, trample
When Eater of Days enters, you skip your next two turns.

Scalding Cauldron

{3}, {T}, Sacrifice Scalding Cauldron: It deals 3 damage to target creature.

Henge Walker

Adamant — If at least three mana of the same color was spent to cast this spell, Henge Walker enters with a +1/+1 counter on it.

Lumengrid Gargoyle

Pattern Matcher

When Pattern Matcher enters, you may search your library for a card with the same name as another creature you control, reveal it, put it into your hand, then shuffle.

Workshop Assistant

When Workshop Assistant dies, return another target artifact card from your graveyard to your hand.