Urza, Prince of Kroog
Corridor Monitor
Metalworker

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
You have at least three artifact cards in hand. Metalworker does not have summoning sickness.

   Steps

How does this combo work?
1
Activate Metalworker by tapping it and revealing at least three artifact cards from your hand, adding at least six .
2
Activate Urza by paying 6, creating a token copy of Corridor Monitor that is a 1/1 Soldier in addition to its other types.
3
When the Corridor Monitor token enters the battlefield, it triggers, untapping Metalworker.
4
Repeat.
5
If you have four or more artifact cards in hand, this combo nets infinite colorless mana, and you may target any other artifact(s) you control.

   Results

What do I get from this combo?
Infinite colorless mana
Infinite creature copies of artifacts you control
Infinite creature tokens
Infinite ETB
Urza, Prince of Kroog
0.2%inclusion5 decks2.50K decks
Urza, Chief Artificer
0.0%inclusion2 decks16K decks
Tawnos, Solemn Survivor
0.1%inclusion1 decks1.21K decks
Shorikai, Genesis Engine
0.0%inclusion1 decks19.6K decks
High Synergy Cards
Foundry Inspector
78%inclusion7 decks9 decks
74%synergy
Ancient Den
78%inclusion7 decks9 decks
72%synergy
Seat of the Synod
78%inclusion7 decks9 decks
71%synergy
Unwinding Clock
67%inclusion6 decks9 decks
64%synergy
Urza, Lord High Artificer
67%inclusion6 decks9 decks
63%synergy
Simulacrum Synthesizer
56%inclusion5 decks9 decks
54%synergy
Sculpting Steel
56%inclusion5 decks9 decks
53%synergy
Whir of Invention
56%inclusion5 decks9 decks
53%synergy
Darksteel Citadel
56%inclusion5 decks9 decks
52%synergy
Inventors' Fair
56%inclusion5 decks9 decks
52%synergy
Top Cards
March of Progress
44%inclusion4 decks9 decks
44%synergy
Clock of Omens
44%inclusion4 decks9 decks
44%synergy
Rings of Brighthearth
44%inclusion4 decks9 decks
43%synergy
Staff of Domination
44%inclusion4 decks9 decks
43%synergy
Myr Battlesphere
44%inclusion4 decks9 decks
43%synergy
Trinket Mage
44%inclusion4 decks9 decks
43%synergy
Sai, Master Thopterist
44%inclusion4 decks9 decks
41%synergy
Fabricate
44%inclusion4 decks9 decks
39%synergy
Etherium Sculptor
44%inclusion4 decks9 decks
39%synergy
Phyrexian Metamorph
44%inclusion4 decks9 decks
37%synergy
Game Changers
Cyclonic Rift
56%inclusion5 decks9 decks
33%synergy
Rhystic Study
56%inclusion5 decks9 decks
32%synergy
Fierce Guardianship
44%inclusion4 decks9 decks
27%synergy
Mana Vault
33%inclusion3 decks9 decks
27%synergy
Ancient Tomb
33%inclusion3 decks9 decks
24%synergy
Vampiric Tutor
33%inclusion1 decks3 decks
18%synergy
Enlightened Tutor
33%inclusion3 decks9 decks
18%synergy
Teferi's Protection
33%inclusion3 decks9 decks
17%synergy
Grim Monolith
22%inclusion2 decks9 decks
20%synergy
Consecrated Sphinx
22%inclusion2 decks9 decks
18%synergy
Creatures
Noxious Gearhulk
67%inclusion2 decks3 decks
64%synergy
The Mechanist, Aerial Artisan
50%inclusion1 decks2 decks
49%synergy
The Walls of Ba Sing Se
50%inclusion1 decks2 decks
48%synergy
Solemn Simulacrum
44%inclusion4 decks9 decks
32%synergy
Esper Sentinel
44%inclusion4 decks9 decks
26%synergy
Valkyrie Aerial Unit
33%inclusion1 decks3 decks
33%synergy
Barbed Servitor
33%inclusion1 decks3 decks
33%synergy
Digsite Engineer
33%inclusion3 decks9 decks
33%synergy
Surge Conductor
33%inclusion1 decks3 decks
32%synergy
Sidisi, Undead Vizier
33%inclusion1 decks3 decks
32%synergy
Urza, Chief Artificer
33%inclusion1 decks3 decks
32%synergy
Trophy Mage
33%inclusion3 decks9 decks
32%synergy
Scrap Trawler
33%inclusion3 decks9 decks
32%synergy
Leaden Myr
33%inclusion1 decks3 decks
32%synergy
Meteor Golem
33%inclusion3 decks9 decks
31%synergy
Marionette Master
33%inclusion1 decks3 decks
31%synergy
Exalted Sunborn
33%inclusion1 decks3 decks
30%synergy
Thought Monitor
33%inclusion3 decks9 decks
30%synergy
Ornithopter of Paradise
33%inclusion3 decks9 decks
29%synergy
Marionette Apprentice
33%inclusion1 decks3 decks
29%synergy
Lotho, Corrupt Shirriff
33%inclusion1 decks3 decks
20%synergy
Baleful Strix
33%inclusion1 decks3 decks
20%synergy
Scrapyard Recombiner
22%inclusion2 decks9 decks
22%synergy
Platoon Dispenser
22%inclusion2 decks9 decks
22%synergy
Workshop Assistant
22%inclusion2 decks9 decks
22%synergy
Karn, Legacy Reforged
22%inclusion2 decks9 decks
22%synergy
Metalwork Colossus
22%inclusion2 decks9 decks
21%synergy
Oltec Matterweaver
22%inclusion2 decks9 decks
21%synergy
Tribute Mage
22%inclusion2 decks9 decks
21%synergy
Bronze Guardian
22%inclusion2 decks9 decks
20%synergy
Jin-Gitaxias, Progress Tyrant
22%inclusion2 decks9 decks
20%synergy
Walking Ballista
22%inclusion2 decks9 decks
20%synergy
Spellskite
22%inclusion2 decks9 decks
19%synergy
Padeem, Consul of Innovation
22%inclusion2 decks9 decks
19%synergy
Emry, Lurker of the Loch
22%inclusion2 decks9 decks
18%synergy
Mondrak, Glory Dominus
22%inclusion2 decks9 decks
16%synergy
Naga Fleshcrafter
20%inclusion1 decks5 decks
19%synergy
Aetherjacket
14%inclusion1 decks7 decks
14%synergy
Guidelight Optimizer
14%inclusion1 decks7 decks
14%synergy
Guardian Sunmare
14%inclusion1 decks7 decks
14%synergy
Stridehangar Automaton
14%inclusion1 decks7 decks
13%synergy
Mendicant Core, Guidelight
14%inclusion1 decks7 decks
13%synergy
Riptide Gearhulk
14%inclusion1 decks7 decks
12%synergy
Shardless Outlander
13%inclusion1 decks8 decks
12%synergy
Marvin, Murderous Mimic
13%inclusion1 decks8 decks
11%synergy
Scrawling Crawler
13%inclusion1 decks8 decks
10%synergy
Filigree Crawler
11%inclusion1 decks9 decks
11%synergy
Guardians of Koilos
11%inclusion1 decks9 decks
11%synergy
Phyrexian Archivist
11%inclusion1 decks9 decks
11%synergy
Aegis Automaton
11%inclusion1 decks9 decks
11%synergy
Instants
Swords to Plowshares
44%inclusion4 decks9 decks
-17%synergy
Batwing Brume
33%inclusion1 decks3 decks
32%synergy
Darkness
33%inclusion1 decks3 decks
32%synergy
Scour for Scrap
33%inclusion1 decks3 decks
32%synergy
Entomb
33%inclusion1 decks3 decks
26%synergy
Malakir Rebirth
33%inclusion1 decks3 decks
25%synergy
Fell the Profane
33%inclusion1 decks3 decks
24%synergy
Void Rend
33%inclusion1 decks3 decks
19%synergy
Dramatic Reversal
22%inclusion2 decks9 decks
18%synergy
Force of Negation
22%inclusion2 decks9 decks
14%synergy
Mana Drain
22%inclusion2 decks9 decks
8%synergy
Brainstorm
22%inclusion2 decks9 decks
4%synergy
Counterspell
22%inclusion2 decks9 decks
-20%synergy
Path to Exile
22%inclusion2 decks9 decks
-25%synergy
Blinkmoth Infusion
11%inclusion1 decks9 decks
11%synergy
Urza's Command
11%inclusion1 decks9 decks
11%synergy
Clockspinning
11%inclusion1 decks9 decks
10%synergy
Hindering Light
11%inclusion1 decks9 decks
10%synergy
Disorder in the Court
11%inclusion1 decks9 decks
10%synergy
Loran's Escape
11%inclusion1 decks9 decks
9%synergy
Eerie Interlude
11%inclusion1 decks9 decks
8%synergy
Dispatch
11%inclusion1 decks9 decks
5%synergy
Silence
11%inclusion1 decks9 decks
5%synergy
Mystical Tutor
11%inclusion1 decks9 decks
-1%synergy
Swan Song
11%inclusion1 decks9 decks
-7%synergy
Dovin's Veto
11%inclusion1 decks9 decks
-7%synergy
Arcane Denial
11%inclusion1 decks9 decks
-9%synergy
Negate
11%inclusion1 decks9 decks
-10%synergy
An Offer You Can't Refuse
11%inclusion1 decks9 decks
-14%synergy
Sorceries
Terisiare's Devastation
33%inclusion1 decks3 decks
33%synergy
Agadeem's Awakening
33%inclusion1 decks3 decks
30%synergy
Damnation
33%inclusion1 decks3 decks
27%synergy
Damn
33%inclusion1 decks3 decks
18%synergy
Demonic Tutor
33%inclusion1 decks3 decks
14%synergy
Supreme Verdict
22%inclusion2 decks9 decks
10%synergy
Farewell
22%inclusion2 decks9 decks
10%synergy
Tune Up
14%inclusion1 decks7 decks
14%synergy
Transmute Artifact
11%inclusion1 decks9 decks
10%synergy
Reshape
11%inclusion1 decks9 decks
10%synergy
All Is Dust
11%inclusion1 decks9 decks
10%synergy
Ondu Inversion
11%inclusion1 decks9 decks
9%synergy
Organic Extinction
11%inclusion1 decks9 decks
9%synergy
Dance of the Manse
11%inclusion1 decks9 decks
8%synergy
Thoughtcast
11%inclusion1 decks9 decks
8%synergy
Sea Gate Restoration
11%inclusion1 decks9 decks
7%synergy
Utility Artifacts
Heartstone
33%inclusion3 decks9 decks
33%synergy
Mycosynth Lattice
33%inclusion3 decks9 decks
33%synergy
Voltaic Key
33%inclusion3 decks9 decks
32%synergy
Darksteel Forge
33%inclusion3 decks9 decks
32%synergy
Manifold Key
33%inclusion3 decks9 decks
32%synergy
Thousand Moons Smithy
33%inclusion3 decks9 decks
31%synergy
Insight Engine
33%inclusion1 decks3 decks
31%synergy
Sensei's Divining Top
33%inclusion3 decks9 decks
29%synergy
Lightning Greaves
33%inclusion3 decks9 decks
9%synergy
Repurposing Bay
29%inclusion2 decks7 decks
28%synergy
Dollhouse of Horrors
22%inclusion2 decks9 decks
22%synergy
Retrofitter Foundry
22%inclusion2 decks9 decks
22%synergy
Spine of Ish Sah
22%inclusion2 decks9 decks
22%synergy
Moonsilver Key
22%inclusion2 decks9 decks
21%synergy
Illusionist's Bracers
22%inclusion2 decks9 decks
21%synergy
Thousand-Year Elixir
22%inclusion2 decks9 decks
21%synergy
Forsaken Monument
22%inclusion2 decks9 decks
21%synergy
Isochron Scepter
22%inclusion2 decks9 decks
20%synergy
Cloud Key
22%inclusion2 decks9 decks
20%synergy
Mystic Forge
22%inclusion2 decks9 decks
19%synergy
Panharmonicon
22%inclusion2 decks9 decks
18%synergy
Ashnod's Altar
22%inclusion2 decks9 decks
16%synergy
The One Ring
22%inclusion2 decks9 decks
14%synergy
Possession Engine
14%inclusion1 decks7 decks
14%synergy
Radiant Lotus
14%inclusion1 decks7 decks
14%synergy
Perilous Snare
14%inclusion1 decks7 decks
14%synergy
Guidelight Pathmaker
14%inclusion1 decks7 decks
14%synergy
Adaptive Omnitool
14%inclusion1 decks7 decks
13%synergy
Salvation Engine
14%inclusion1 decks7 decks
13%synergy
Ghost Vacuum
13%inclusion1 decks8 decks
12%synergy
Thran Weaponry
11%inclusion1 decks9 decks
11%synergy
Surge Node
11%inclusion1 decks9 decks
11%synergy
The Filigree Sylex
11%inclusion1 decks9 decks
11%synergy
Nuisance Engine
11%inclusion1 decks9 decks
11%synergy
Wings of Hubris
11%inclusion1 decks9 decks
11%synergy
Timesifter
11%inclusion1 decks9 decks
11%synergy
Prototype Portal
11%inclusion1 decks9 decks
11%synergy
Sphere of Resistance
11%inclusion1 decks9 decks
11%synergy
Knowledge Pool
11%inclusion1 decks9 decks
11%synergy
Collector's Cage
11%inclusion1 decks9 decks
11%synergy
Nexus of Becoming
11%inclusion1 decks9 decks
11%synergy
Grindstone
11%inclusion1 decks9 decks
11%synergy
Magistrate's Scepter
11%inclusion1 decks9 decks
11%synergy
Trinisphere
11%inclusion1 decks9 decks
11%synergy
The Underworld Cookbook
11%inclusion1 decks9 decks
11%synergy
Animation Module
11%inclusion1 decks9 decks
11%synergy
Darksteel Reactor
11%inclusion1 decks9 decks
11%synergy
Obelisk of Urd
11%inclusion1 decks9 decks
11%synergy
Heirloom Blade
11%inclusion1 decks9 decks
11%synergy
Throne of Geth
11%inclusion1 decks9 decks
11%synergy
Enchantments
Oubliette
33%inclusion1 decks3 decks
32%synergy
No Mercy
33%inclusion1 decks3 decks
31%synergy
Training Grounds
33%inclusion3 decks9 decks
30%synergy
Mystic Remora
33%inclusion3 decks9 decks
17%synergy
Smothering Tithe
33%inclusion3 decks9 decks
12%synergy
Intruder Alarm
22%inclusion2 decks9 decks
20%synergy
Mechanized Production
22%inclusion2 decks9 decks
19%synergy
Anointed Procession
22%inclusion2 decks9 decks
15%synergy
Dollmaker's Shop // Porcelain Gallery
13%inclusion1 decks8 decks
11%synergy
Power Artifact
11%inclusion1 decks9 decks
11%synergy
Dictate of Heliod
11%inclusion1 decks9 decks
11%synergy
Corrupted Conscience
11%inclusion1 decks9 decks
11%synergy
Out of Time
11%inclusion1 decks9 decks
11%synergy
Copy Artifact
11%inclusion1 decks9 decks
10%synergy
Leyline of Hope
11%inclusion1 decks9 decks
10%synergy
Tempered Steel
11%inclusion1 decks9 decks
10%synergy
Inspiring Leader
11%inclusion1 decks9 decks
10%synergy
Deafening Silence
11%inclusion1 decks9 decks
9%synergy
Thopter Spy Network
11%inclusion1 decks9 decks
8%synergy
Imprisoned in the Moon
11%inclusion1 decks9 decks
7%synergy
Trouble in Pairs
11%inclusion1 decks9 decks
7%synergy
Intangible Virtue
11%inclusion1 decks9 decks
6%synergy
Darksteel Mutation
11%inclusion1 decks9 decks
6%synergy
Land Tax
11%inclusion1 decks9 decks
5%synergy
Propaganda
11%inclusion1 decks9 decks
-3%synergy
Planeswalkers
Tezzeret, Cruel Captain
33%inclusion1 decks3 decks
32%synergy
Tezzeret the Seeker
33%inclusion3 decks9 decks
31%synergy
Karn, Scion of Urza
22%inclusion2 decks9 decks
22%synergy
Karn, Living Legacy
22%inclusion2 decks9 decks
22%synergy
Karn, the Great Creator
22%inclusion2 decks9 decks
21%synergy
Ugin, Eye of the Storms
20%inclusion1 decks5 decks
19%synergy
Elspeth, Storm Slayer
20%inclusion1 decks5 decks
15%synergy
Ajani, Wise Counselor
11%inclusion1 decks9 decks
11%synergy
Utility Lands
Vault of Whispers
100%inclusion3 decks3 decks
96%synergy
Uthros, Titanic Godcore
67%inclusion2 decks3 decks
63%synergy
Bojuka Bog
67%inclusion2 decks3 decks
37%synergy
Urza's Saga
56%inclusion5 decks9 decks
49%synergy
Academy Ruins
44%inclusion4 decks9 decks
39%synergy
Adagia, Windswept Bastion
33%inclusion1 decks3 decks
30%synergy
Takenuma, Abandoned Mire
33%inclusion1 decks3 decks
25%synergy
Otawara, Soaring City
33%inclusion3 decks9 decks
17%synergy
Urza's Workshop
22%inclusion2 decks9 decks
22%synergy
Urza's Power Plant
22%inclusion2 decks9 decks
20%synergy
Urza's Mine
22%inclusion2 decks9 decks
20%synergy
Urza's Tower
22%inclusion2 decks9 decks
20%synergy
Buried Ruin
22%inclusion2 decks9 decks
17%synergy
Urborg, Tomb of Yawgmoth
22%inclusion2 decks9 decks
13%synergy
Reliquary Tower
22%inclusion2 decks9 decks
-8%synergy
Mistrise Village
20%inclusion1 decks5 decks
12%synergy
Tocasia's Dig Site
11%inclusion1 decks9 decks
11%synergy
Urza's Factory
11%inclusion1 decks9 decks
11%synergy
Mishra's Workshop
11%inclusion1 decks9 decks
11%synergy
Glacial Chasm
11%inclusion1 decks9 decks
10%synergy
Homeward Path
11%inclusion1 decks9 decks
10%synergy
Vesuva
11%inclusion1 decks9 decks
10%synergy
Field of Ruin
11%inclusion1 decks9 decks
9%synergy
Monumental Henge
11%inclusion1 decks9 decks
9%synergy
Emergence Zone
11%inclusion1 decks9 decks
9%synergy
Thespian's Stage
11%inclusion1 decks9 decks
9%synergy
Strip Mine
11%inclusion1 decks9 decks
9%synergy
Field of the Dead
11%inclusion1 decks9 decks
8%synergy
Archway of Innovation
11%inclusion1 decks9 decks
8%synergy
Karn's Bastion
11%inclusion1 decks9 decks
6%synergy
Three Tree City
11%inclusion1 decks9 decks
6%synergy
Mystic Sanctuary
11%inclusion1 decks9 decks
1%synergy
Mana Artifacts
Sol Ring
89%inclusion8 decks9 decks
5%synergy
Arcane Signet
78%inclusion7 decks9 decks
6%synergy
Basalt Monolith
56%inclusion5 decks9 decks
53%synergy
Machine God's Effigy
44%inclusion4 decks9 decks
43%synergy
Azorius Signet
44%inclusion4 decks9 decks
23%synergy
The Eternity Elevator
33%inclusion1 decks3 decks
32%synergy
Mox Opal
33%inclusion3 decks9 decks
29%synergy
Talisman of Progress
33%inclusion3 decks9 decks
8%synergy
Talisman of Hierarchy
33%inclusion1 decks3 decks
7%synergy
Talisman of Dominance
33%inclusion1 decks3 decks
1%synergy
Powerstone Shard
22%inclusion2 decks9 decks
22%synergy
Gilded Lotus
22%inclusion2 decks9 decks
19%synergy
Everflowing Chalice
22%inclusion2 decks9 decks
18%synergy
Mind Stone
22%inclusion2 decks9 decks
8%synergy
Thought Vessel
22%inclusion2 decks9 decks
5%synergy
Fellwar Stone
22%inclusion2 decks9 decks
2%synergy
The Aetherspark
14%inclusion1 decks7 decks
13%synergy
Slagstone Refinery
11%inclusion1 decks9 decks
11%synergy
Empowered Autogenerator
11%inclusion1 decks9 decks
11%synergy
The Mightstone and Weakstone
11%inclusion1 decks9 decks
11%synergy
Astral Cornucopia
11%inclusion1 decks9 decks
10%synergy
Caged Sun
11%inclusion1 decks9 decks
9%synergy
Crystal Skull, Isu Spyglass
11%inclusion1 decks9 decks
9%synergy
Liquimetal Torque
11%inclusion1 decks9 decks
8%synergy
Mox Diamond
11%inclusion1 decks9 decks
7%synergy
Mox Amber
11%inclusion1 decks9 decks
7%synergy
Thran Dynamo
11%inclusion1 decks9 decks
7%synergy
Midnight Clock
11%inclusion1 decks9 decks
6%synergy
Chrome Mox
11%inclusion1 decks9 decks
5%synergy
Lands
Command Tower
89%inclusion8 decks9 decks
15%synergy
Flooded Strand
67%inclusion6 decks9 decks
55%synergy
Vault of Champions
67%inclusion2 decks3 decks
43%synergy
Morphic Pool
67%inclusion2 decks3 decks
42%synergy
Hallowed Fountain
67%inclusion6 decks9 decks
27%synergy
Godless Shrine
67%inclusion2 decks3 decks
25%synergy
Watery Grave
67%inclusion2 decks3 decks
25%synergy
Sea of Clouds
44%inclusion4 decks9 decks
20%synergy
Prairie Stream
44%inclusion4 decks9 decks
11%synergy
Urza's Cave
33%inclusion3 decks9 decks
31%synergy
Goldmire Bridge
33%inclusion1 decks3 decks
30%synergy
Mistvault Bridge
33%inclusion1 decks3 decks
29%synergy
Hengegate Pathway
33%inclusion3 decks9 decks
27%synergy
Shadowy Backstreet
33%inclusion1 decks3 decks
23%synergy
Marsh Flats
33%inclusion3 decks9 decks
23%synergy
Undercity Sewers
33%inclusion1 decks3 decks
22%synergy
Polluted Delta
33%inclusion3 decks9 decks
21%synergy
Dimir Aqueduct
33%inclusion1 decks3 decks
19%synergy
Orzhov Basilica
33%inclusion1 decks3 decks
19%synergy
Shattered Sanctum
33%inclusion1 decks3 decks
18%synergy
Raffine's Tower
33%inclusion1 decks3 decks
9%synergy
Sunken Hollow
33%inclusion1 decks3 decks
0%synergy
Power Depot
22%inclusion2 decks9 decks
21%synergy
Spire of Industry
22%inclusion2 decks9 decks
19%synergy
Meticulous Archive
22%inclusion2 decks9 decks
14%synergy
Tundra
22%inclusion2 decks9 decks
8%synergy
Port Town
22%inclusion2 decks9 decks
7%synergy
Deserted Beach
22%inclusion2 decks9 decks
5%synergy
Adarkar Wastes
22%inclusion2 decks9 decks
-1%synergy
Glacial Fortress
22%inclusion2 decks9 decks
-11%synergy
Floodfarm Verge
13%inclusion1 decks8 decks
3%synergy
Crumbling Vestige
11%inclusion1 decks9 decks
11%synergy
Unknown Shores
11%inclusion1 decks9 decks
11%synergy
Hall of Tagsin
11%inclusion1 decks9 decks
11%synergy
Planar Nexus
11%inclusion1 decks9 decks
10%synergy
Gateway Plaza
11%inclusion1 decks9 decks
10%synergy
The Mycosynth Gardens
11%inclusion1 decks9 decks
9%synergy
Talon Gates of Madara
11%inclusion1 decks9 decks
9%synergy
Nimbus Maze
11%inclusion1 decks9 decks
7%synergy
Tranquil Cove
11%inclusion1 decks9 decks
5%synergy
Razortide Bridge
11%inclusion1 decks9 decks
4%synergy
Mana Confluence
11%inclusion1 decks9 decks
4%synergy
Mystic Gate
11%inclusion1 decks9 decks
4%synergy
City of Brass
11%inclusion1 decks9 decks
4%synergy
Arid Mesa
11%inclusion1 decks9 decks
1%synergy
Scalding Tarn
11%inclusion1 decks9 decks
0%synergy
Windswept Heath
11%inclusion1 decks9 decks
0%synergy
Misty Rainforest
11%inclusion1 decks9 decks
0%synergy
Azorius Chancery
11%inclusion1 decks9 decks
-2%synergy
Evolving Wilds
11%inclusion1 decks9 decks
-10%synergy