Cauldron of Souls
Dross Scorpion
Extruder

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
You control another artifact creature with base toughness 2 or greater. Extruder does not have a -1/-1 counter on it.

   Steps

How does this combo work?
1
Activate Cauldron of Souls by tapping it, giving Extruder and the other artifact creature with base toughness 2 or greater persist until end of turn.
2
Activate Extruder by sacrificing it, targeting the other artifact creature.
3
When Extruder dies, its persist ability and Dross Scorpion trigger.
4
Resolve the Dross Scorpion trigger, untapping Cauldron of Souls.
5
Resolve the Extruder trigger, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
6
Resolve the Extruder ability from step 2, putting a +1/+1 on the targeted creature.
7
Activate Extruder by sacrificing the other artifact creature, targeting Extruder.
8
When the creature dies, its persist ability and Dross Scorpion triggers.
9
Resolve the Dross Scorpion trigger, untapping any artifact you control.
10
Resolve the persist trigger, returning the creature from your graveyard to the battlefield with a -1/-1 counter on it.
11
Resolve the Extruder ability, putting a +1/+1 counter on it.
12
Repeat.

   Results

What do I get from this combo?
Infinite LTB
Infinite ETB
Infinite sacrifice triggers
Infinite death triggers
Infinite mana artifacts you control can produce
Infinite untap of artifacts you control
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New Cards
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20%synergy
Chrome Dome
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20%synergy
High Synergy Cards
Arcbound Ravager
53%inclusion9 decks17 decks
53%synergy
Ashnod's Altar
59%inclusion10 decks17 decks
52%synergy
Scrap Trawler
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51%synergy
Inventors' Fair
53%inclusion9 decks17 decks
49%synergy
War Room
53%inclusion9 decks17 decks
47%synergy
Pentavus
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47%synergy
Junk Diver
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46%synergy
Steel Overseer
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45%synergy
Urza's Mine
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Urza's Tower
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Top Cards
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Triskelion
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41%synergy
Hangarback Walker
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Forsaken Monument
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Walking Ballista
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Glaring Fleshraker
38%inclusion6 decks16 decks
36%synergy
Clock of Omens
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All Is Dust
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Game Changers
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Creatures
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Solemn Simulacrum
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Thopter Squadron
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Cathodion
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Arcbound Crusher
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Pili-Pala
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Workshop Assistant
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Marketback Walker
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Tetravus
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Tatterkite
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Patchwork Automaton
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Instants
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Warping Wail
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Sorceries
Faithless Looting
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Expanded Anatomy
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Utility Artifacts
Altar of Dementia
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Unwinding Clock
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Salvaging Station
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Tormod's Crypt
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Mirage Mirror
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Cloud Key
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The Ozolith
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Enchantments
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Utility Lands
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Bojuka Bog
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Buried Ruin
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Sea Gate Wreckage
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Blast Zone
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High Market
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Reliquary Tower
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Forge of Heroes
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Ghost Quarter
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Nesting Grounds
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Bonders' Enclave
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Thespian's Stage
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Mana Artifacts
Sol Ring
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Thran Dynamo
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Basalt Monolith
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Mind Stone
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27%synergy
Arcane Signet
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-37%synergy
Thought Vessel
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12%synergy
Chromatic Sphere
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23%synergy
Chromatic Star
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Sol Talisman
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Dreamstone Hedron
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Worn Powerstone
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Hedron Archive
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Gilded Lotus
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Coveted Jewel
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Everflowing Chalice
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Lands
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23%synergy
The Mycosynth Gardens
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22%synergy
Myriad Landscape
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Command Tower
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-51%synergy
Urza's Cave
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16%synergy
Demolition Field
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15%synergy