Scrap Trawler
Myr Retriever
Krark-Clan Ironworks
Urza, Lord Protector

   Prerequisites

What do I need to start this combo?
Scrap Trawler in your graveyard.
All other permanents on the battlefield.

   Steps

How does this combo work?
1
Activate Krark-Clan Ironworks by sacrificing Myr Retriever, adding .
2
When Myr Retriever dies, it triggers, returning Scrap Trawler from your graveyard to your hand.
3
Cast Scrap Trawler by paying its mana cost, which is reduced by Urza.
4
Activate Krark-Clan Ironworks by sacrificing Scrap Trawler, adding .
5
When Scrap Trawler dies, it triggers, returning Myr Retriever from your graveyard to your hand.
6
Cast Myr Retriever by paying its mana cost, which is reduced by Urza.
7
Repeat.

   Results

What do I get from this combo?
Infinite ETB
Infinite LTB
Infinite colorless mana
Infinite death triggers
Infinite sacrifice triggers
Infinite storm count
Breya, Etherium Shaper
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Mendicant Core, Guidelight
0.4%inclusion56 decks14.8K decks
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0.3%inclusion48 decks16.5K decks
Urza, Prince of Kroog
0.6%inclusion16 decks2.48K decks
Noctis, Prince of Lucis
0.2%inclusion15 decks7.89K decks
Dr. Madison Li
0.2%inclusion14 decks6.95K decks
Tetzin, Gnome Champion
0.3%inclusion12 decks4.48K decks
Urtet, Remnant of Memnarch
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Elsha of the Infinite
0.2%inclusion9 decks4.91K decks
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0.2%inclusion7 decks3K decks
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Bjorna, Nightfall Alchemist // Hargilde, Kindly Runechanter
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New Cards
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4.3%inclusion3 decks70 decks
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Coastal Peak
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High Synergy Cards
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Foundry Inspector
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Seat of the Synod
75%inclusion416 decks552 decks
Vault of Whispers
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Ancient Den
72%inclusion396 decks552 decks
Mystic Forge
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Great Furnace
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Enthusiastic Mechanaut
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Sai, Master Thopterist
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Top Cards
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Sensei's Divining Top
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Time Sieve
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Fabricate
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Thopter Foundry
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Creatures
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Forensic Gadgeteer
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The Reality Chip
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Solemn Simulacrum
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Pinnacle Emissary
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25%inclusion16 decks64 decks
Jhoira's Familiar
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Leaden Myr
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Steel Overseer
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Dispatch
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Counterspell
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Generous Gift
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Desynchronization
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Dramatic Reversal
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Negate
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Bant Charm
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Chaos Warp
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Force of Will
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Brainstorm
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Thirst for Knowledge
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Deflecting Swat
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Silence
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Deadly Dispute
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Paradoxical Outcome
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Force of Negation
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Second Sunrise
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Deadly Rollick
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Flusterstorm
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Three Steps Ahead
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Sorceries
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Organic Extinction
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Wake the Past
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Farseek
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Reshape
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Voyage Home
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Blasphemous Act
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Vandalblast
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Supreme Verdict
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Toxic Deluge
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Scrap Mastery
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Dance of the Manse
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Farewell
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Windfall
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Damn
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Austere Command
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Their Name Is Death
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Diabolic Intent
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Sea Gate Restoration
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Brilliant Restoration
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Transmute Artifact
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Utility Artifacts
Unwinding Clock
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Cloud Key
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Ashnod's Altar
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Skullclamp
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Simulacrum Synthesizer
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Ichor Wellspring
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Aetherflux Reservoir
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Uthros Research Craft
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Repurposing Bay
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Sword of the Meek
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Lightning Greaves
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Semblance Anvil
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Clock of Omens
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Thousand Moons Smithy
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Nim Deathmantle
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Mishra's Bauble
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Mycosynth Lattice
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Cryogen Relic
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Wishclaw Talisman
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Grinding Station
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Encroaching Mycosynth
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Worldwalker Helm
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Cranial Plating
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Swiftfoot Boots
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Isochron Scepter
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Rings of Brighthearth
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Aether Spellbomb
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Manifold Key
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Hedge Shredder
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Nihil Spellbomb
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Soul-Guide Lantern
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Pyrite Spellbomb
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Forsaken Monument
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Conjurer's Bauble
8.7%inclusion48 decks552 decks
Brass's Tunnel-Grinder
8.5%inclusion20 decks236 decks
Demonic Junker
8.4%inclusion18 decks215 decks
Helm of Awakening
8.0%inclusion44 decks552 decks
Wayfarer's Bauble
8.0%inclusion44 decks552 decks
Retrofitter Foundry
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Voltaic Key
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Expedition Map
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Panharmonicon
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Radiant Lotus
7.6%inclusion33 decks435 decks
Urza's Bauble
7.2%inclusion40 decks552 decks
Staff of Domination
6.9%inclusion38 decks552 decks
Enchantments
Weapons Manufacturing
30%inclusion37 decks125 decks
Mirrodin Besieged
30%inclusion163 decks552 decks
Storm the Vault
28%inclusion66 decks236 decks
Rhystic Study
25%inclusion136 decks552 decks
Thopter Spy Network
24%inclusion135 decks552 decks
Mechanized Production
20%inclusion111 decks552 decks
Cryptolith Rite
18%inclusion5 decks28 decks
Efficient Construction
17%inclusion93 decks552 decks
Mystic Remora
14%inclusion78 decks552 decks
Artificer Class
13%inclusion69 decks552 decks
Biotransference
12%inclusion32 decks275 decks
Anointed Procession
8.9%inclusion49 decks552 decks
Jeskai Ascendancy
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Underworld Breach
6.8%inclusion16 decks236 decks
Whirlwind of Thought
5.5%inclusion13 decks236 decks
Planeswalkers
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41%inclusion112 decks275 decks
Daretti, Scrap Savant
28%inclusion65 decks236 decks
Tezzeret the Seeker
28%inclusion152 decks552 decks
Tezzeret, Cruel Captain
17%inclusion49 decks296 decks
Saheeli, Sublime Artificer
12%inclusion28 decks236 decks
Karn, the Great Creator
10%inclusion53 decks552 decks
Teferi, Time Raveler
9.2%inclusion51 decks552 decks
Ugin, Eye of the Storms
6.8%inclusion26 decks382 decks
Tezzeret, Betrayer of Flesh
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Ugin, the Ineffable
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Tezzeret, Artifice Master
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Tezzeret, Agent of Bolas
5.1%inclusion14 decks275 decks
Saheeli, Filigree Master
5.1%inclusion12 decks236 decks
Karn, Scion of Urza
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Utility Lands
Inventors' Fair
61%inclusion339 decks552 decks
Tree of Tales
57%inclusion16 decks28 decks
Academy Ruins
57%inclusion314 decks552 decks
Urza's Saga
51%inclusion279 decks552 decks
Darksteel Citadel
47%inclusion262 decks552 decks
Buried Ruin
41%inclusion225 decks552 decks
Uthros, Titanic Godcore
33%inclusion94 decks281 decks
Archway of Innovation
30%inclusion163 decks550 decks
Reliquary Tower
25%inclusion138 decks552 decks
Otawara, Soaring City
21%inclusion115 decks552 decks
Urza's Mine
18%inclusion99 decks552 decks
Urza's Tower
18%inclusion99 decks552 decks
Urza's Power Plant
18%inclusion98 decks552 decks
Treasure Vault
17%inclusion94 decks552 decks
Fomori Vault
17%inclusion93 decks552 decks
Boseiju, Who Endures
14%inclusion4 decks28 decks
Bojuka Bog
12%inclusion33 decks275 decks
Urza's Workshop
12%inclusion64 decks552 decks
Muraganda Raceway
10%inclusion44 decks438 decks
Monumental Henge
10%inclusion55 decks552 decks
Eiganjo, Seat of the Empire
9.4%inclusion52 decks552 decks
Adagia, Windswept Bastion
6.4%inclusion18 decks280 decks
Minamo, School at Water's Edge
6.2%inclusion34 decks552 decks
Amonkhet Raceway
5.7%inclusion25 decks437 decks
Mana Artifacts
Sol Ring
93%inclusion512 decks552 decks
Arcane Signet
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The Mightstone and Weakstone
80%inclusion443 decks552 decks
Talisman of Progress
41%inclusion226 decks552 decks
Talisman of Creativity
38%inclusion90 decks236 decks
Mox Opal
37%inclusion206 decks552 decks
Talisman of Dominance
36%inclusion98 decks275 decks
Fellwar Stone
33%inclusion184 decks552 decks
Azorius Signet
33%inclusion183 decks552 decks
Talisman of Hierarchy
24%inclusion67 decks275 decks
Crystal Skull, Isu Spyglass
24%inclusion130 decks537 decks
Mind Stone
24%inclusion131 decks552 decks
Talisman of Conviction
23%inclusion55 decks236 decks
Dimir Signet
23%inclusion63 decks275 decks
Lotus Petal
22%inclusion123 decks552 decks
Thought Vessel
22%inclusion122 decks552 decks
Basalt Monolith
21%inclusion117 decks552 decks
Izzet Signet
21%inclusion49 decks236 decks
Mox Amber
18%inclusion101 decks552 decks
Orzhov Signet
17%inclusion46 decks275 decks
Chromatic Star
16%inclusion88 decks552 decks
Talisman of Indulgence
16%inclusion28 decks177 decks
Thran Dynamo
16%inclusion86 decks552 decks
Chromatic Lantern
15%inclusion84 decks552 decks
Talisman of Curiosity
14%inclusion4 decks28 decks
Liquimetal Torque
14%inclusion78 decks552 decks
Commander's Sphere
12%inclusion67 decks552 decks
Talisman of Unity
11%inclusion3 decks28 decks
Boros Signet
11%inclusion25 decks236 decks
Chromatic Sphere
11%inclusion58 decks552 decks
Chrome Mox
9.2%inclusion51 decks552 decks
Everflowing Chalice
8.3%inclusion46 decks552 decks
Shadowblood Egg
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Rakdos Signet
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Gilded Lotus
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Coveted Jewel
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Golden Egg
6.9%inclusion38 decks552 decks
Mox Diamond
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Darkwater Egg
5.8%inclusion16 decks275 decks
Chromatic Orrery
5.6%inclusion31 decks552 decks
Midnight Clock
5.4%inclusion30 decks552 decks
Skycloud Egg
5.3%inclusion29 decks552 decks
Prophetic Prism
5.1%inclusion28 decks552 decks
Lands
Command Tower
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Hallowed Fountain
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Watery Grave
59%inclusion163 decks275 decks
Steam Vents
58%inclusion138 decks236 decks
Razortide Bridge
52%inclusion287 decks552 decks
Godless Shrine
50%inclusion137 decks275 decks
Sacred Foundry
50%inclusion117 decks236 decks
Flooded Strand
49%inclusion271 decks552 decks
Mistvault Bridge
49%inclusion134 decks275 decks
Spire of Industry
45%inclusion248 decks552 decks
Silverbluff Bridge
44%inclusion105 decks236 decks
Goldmire Bridge
42%inclusion116 decks275 decks
Raffine's Tower
42%inclusion116 decks275 decks
Blood Crypt
42%inclusion74 decks177 decks
Raugrin Triome
40%inclusion94 decks236 decks
Exotic Orchard
39%inclusion216 decks552 decks
Sea of Clouds
38%inclusion211 decks552 decks
Rustvale Bridge
36%inclusion85 decks236 decks
Tanglepool Bridge
36%inclusion10 decks28 decks
Breeding Pool
36%inclusion10 decks28 decks
Xander's Lounge
35%inclusion62 decks177 decks
Polluted Delta
34%inclusion188 decks552 decks
Adarkar Wastes
32%inclusion178 decks552 decks
Thornglint Bridge
32%inclusion9 decks28 decks
Temple Garden
32%inclusion9 decks28 decks
Glacial Fortress
31%inclusion172 decks552 decks
Drossforge Bridge
31%inclusion54 decks177 decks
Scalding Tarn
28%inclusion154 decks552 decks
Marsh Flats
28%inclusion152 decks552 decks
Arid Mesa
26%inclusion142 decks552 decks
Tundra
24%inclusion131 decks552 decks
The World Tree
24%inclusion4 decks17 decks
Deserted Beach
23%inclusion129 decks552 decks
Prairie Stream
23%inclusion128 decks552 decks
Morphic Pool
23%inclusion63 decks275 decks
Bayou
22%inclusion4 decks18 decks
Overgrown Tomb
22%inclusion4 decks18 decks
Underground Sea
22%inclusion60 decks275 decks
Arcane Sanctum
21%inclusion59 decks275 decks
Tropical Island
21%inclusion6 decks28 decks
Spara's Headquarters
21%inclusion6 decks28 decks
Taiga
21%inclusion4 decks19 decks
Ketria Triome
21%inclusion4 decks19 decks
Stomping Ground
21%inclusion4 decks19 decks
Training Center
21%inclusion49 decks236 decks
Scrubland
21%inclusion57 decks275 decks
Underground River
20%inclusion56 decks275 decks
Volcanic Island
19%inclusion46 decks236 decks
Savai Triome
19%inclusion34 decks177 decks
Badlands
19%inclusion33 decks177 decks