Prototype Portal
Dross Scorpion
Grinding Station
Cathodion

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
3 available

   Steps

How does this combo work?
1
Activate Prototype Portal by paying 3 and tapping it, creating a token copy of Cathodion.
2
When the token Cathodion enters, Grinding Station triggers, untapping itself.
3
Activate Grinding Station by sacrificing Cathodion and tapping it.
4
When Cathodion dies, Cathodion and Dross Scorpion trigger.
5
Resolve the Cathodion trigger, adding .
6
Resolve the Dross Scorpion trigger, untapping Prototype Portal.
7
Resolve the Grinding Station ability, causing target player to mill three cards.
8
Repeat.

   Results

What do I get from this combo?
Infinite LTB
Infinite ETB
Infinite sacrifice triggers
Infinite death triggers
Infinite mill
Infinite self-mill
Ragost, Deft Gastronaut
0.0%inclusion3 decks16.7K decks
Ashnod the Uncaring
0.1%inclusion3 decks2.99K decks
Sharuum the Hegemon
0.1%inclusion2 decks3.03K decks
Karn, Silver Golem
0.2%inclusion2 decks1.11K decks
Weatherlight Compleated
0.5%inclusion2 decks432 decks
Marvin, Murderous Mimic
0.1%inclusion1 decks1.89K decks
Liberator, Urza's Battlethopter
0.0%inclusion1 decks2.67K decks
The Master, Transcendent
0.0%inclusion1 decks3.95K decks
Traxos, Scourge of Kroog
0.0%inclusion1 decks2.10K decks
Osgir, the Reconstructor
0.0%inclusion1 decks4.95K decks
Tawnos, Urza's Apprentice
0.3%inclusion1 decks375 decks
Queen Kayla bin-Kroog
0.0%inclusion1 decks2.21K decks
Golbez, Crystal Collector
0.0%inclusion1 decks10.8K decks
Jhoira, Ageless Innovator
0.0%inclusion1 decks2.51K decks
High Synergy Cards
Great Furnace
100%inclusion10 decks10 decks
94%synergy
Clock of Omens
90%inclusion19 decks21 decks
90%synergy
Seat of the Synod
89%inclusion8 decks9 decks
82%synergy
Vault of Whispers
86%inclusion6 decks7 decks
81%synergy
Ancient Den
86%inclusion6 decks7 decks
80%synergy
Umbral Collar Zealot
80%inclusion4 decks5 decks
77%synergy
Krark-Clan Ironworks
76%inclusion16 decks21 decks
75%synergy
Myr Retriever
76%inclusion16 decks21 decks
75%synergy
Darksteel Citadel
76%inclusion16 decks21 decks
72%synergy
Etherium Sculptor
78%inclusion7 decks9 decks
72%synergy
Top Cards
Disciple of the Vault
71%inclusion5 decks7 decks
70%synergy
Sculpting Steel
71%inclusion15 decks21 decks
69%synergy
Junk Diver
67%inclusion14 decks21 decks
66%synergy
Weapons Manufacturing
67%inclusion6 decks9 decks
65%synergy
Scour for Scrap
67%inclusion4 decks6 decks
65%synergy
Emry, Lurker of the Loch
67%inclusion6 decks9 decks
62%synergy
Ashnod's Altar
67%inclusion14 decks21 decks
60%synergy
Myr Battlesphere
62%inclusion13 decks21 decks
60%synergy
Cranial Plating
57%inclusion4 decks7 decks
56%synergy
Unwinding Clock
57%inclusion12 decks21 decks
55%synergy
Game Changers
The One Ring
29%inclusion6 decks21 decks
21%synergy
Mishra's Workshop
19%inclusion4 decks21 decks
19%synergy
Mana Vault
19%inclusion4 decks21 decks
13%synergy
Ancient Tomb
14%inclusion3 decks21 decks
5%synergy
Creatures
Pinnacle Emissary
60%inclusion3 decks5 decks
58%synergy
Zirda, the Dawnwaker
60%inclusion3 decks5 decks
58%synergy
Mondrak, Glory Dominus
57%inclusion4 decks7 decks
51%synergy
Esper Sentinel
57%inclusion4 decks7 decks
38%synergy
Weftstalker Ardent
56%inclusion5 decks9 decks
53%synergy
Mechan Assembler
50%inclusion3 decks6 decks
50%synergy
Foundry Inspector
48%inclusion10 decks21 decks
44%synergy
The Reality Chip
44%inclusion4 decks9 decks
41%synergy
Thought Monitor
44%inclusion4 decks9 decks
41%synergy
Phyrexian Metamorph
44%inclusion4 decks9 decks
37%synergy
Pentavus
43%inclusion9 decks21 decks
43%synergy
Astrid Peth
43%inclusion3 decks7 decks
42%synergy
Oswald Fiddlebender
43%inclusion3 decks7 decks
42%synergy
Scrap Trawler
43%inclusion9 decks21 decks
41%synergy
Marionette Master
43%inclusion3 decks7 decks
41%synergy
Gold Myr
43%inclusion3 decks7 decks
40%synergy
Grand Abolisher
43%inclusion3 decks7 decks
34%synergy
Reckless Fireweaver
40%inclusion4 decks10 decks
36%synergy
Wurmcoil Engine
38%inclusion8 decks21 decks
37%synergy
Broodstar
33%inclusion3 decks9 decks
33%synergy
Master Transmuter
33%inclusion3 decks9 decks
32%synergy
Trinket Mage
33%inclusion3 decks9 decks
32%synergy
Knuckles the Echidna
33%inclusion3 decks9 decks
31%synergy
Silver Myr
33%inclusion3 decks9 decks
31%synergy
Academy Manufactor
33%inclusion7 decks21 decks
29%synergy
Megatog
30%inclusion3 decks10 decks
30%synergy
Daretti, Rocketeer Engineer
30%inclusion3 decks10 decks
30%synergy
Goblin Welder
30%inclusion3 decks10 decks
28%synergy
Treasure Nabber
30%inclusion3 decks10 decks
28%synergy
Goblin Engineer
30%inclusion3 decks10 decks
27%synergy
Ragavan, Nimble Pilferer
30%inclusion3 decks10 decks
22%synergy
Myr Moonvessel
29%inclusion6 decks21 decks
28%synergy
Workshop Assistant
29%inclusion6 decks21 decks
28%synergy
Mycosynth Golem
29%inclusion6 decks21 decks
28%synergy
Walking Ballista
29%inclusion6 decks21 decks
26%synergy
Battered Golem
24%inclusion5 decks21 decks
24%synergy
Solemn Simulacrum
24%inclusion5 decks21 decks
12%synergy
Dauntless Scrapbot
23%inclusion3 decks13 decks
23%synergy
Stridehangar Automaton
20%inclusion4 decks20 decks
19%synergy
Thopter Squadron
19%inclusion4 decks21 decks
19%synergy
Su-Chi Cave Guard
19%inclusion4 decks21 decks
19%synergy
Phyrexian Triniform
19%inclusion4 decks21 decks
18%synergy
Triplicate Titan
19%inclusion4 decks21 decks
18%synergy
Threefold Thunderhulk
19%inclusion4 decks21 decks
18%synergy
Shimmer Myr
19%inclusion4 decks21 decks
18%synergy
Glaring Fleshraker
19%inclusion4 decks21 decks
18%synergy
Jhoira's Familiar
19%inclusion4 decks21 decks
18%synergy
Su-Chi
14%inclusion3 decks21 decks
14%synergy
Arcbound Reclaimer
14%inclusion3 decks21 decks
14%synergy
Coretapper
14%inclusion3 decks21 decks
14%synergy
Instants
Boros Charm
60%inclusion3 decks5 decks
38%synergy
Dispatch
57%inclusion4 decks7 decks
51%synergy
Swords to Plowshares
57%inclusion4 decks7 decks
-4%synergy
Clever Concealment
43%inclusion3 decks7 decks
38%synergy
Annul
33%inclusion3 decks9 decks
33%synergy
Warping Wail
14%inclusion3 decks21 decks
13%synergy
Sorceries
Scrounge for Eternity
60%inclusion3 decks5 decks
60%synergy
Wake the Past
60%inclusion3 decks5 decks
57%synergy
Blasphemous Act
40%inclusion4 decks10 decks
7%synergy
Thoughtcast
33%inclusion3 decks9 decks
30%synergy
Fabricate
33%inclusion3 decks9 decks
28%synergy
All Is Dust
14%inclusion3 decks21 decks
13%synergy
Utility Artifacts
Dubious Delicacy
60%inclusion3 decks5 decks
60%synergy
Voltaic Key
48%inclusion10 decks21 decks
47%synergy
Mystic Forge
48%inclusion10 decks21 decks
45%synergy
Repurposing Bay
44%inclusion4 decks9 decks
43%synergy
Necrogen Spellbomb
43%inclusion3 decks7 decks
43%synergy
Blasting Station
43%inclusion9 decks21 decks
42%synergy
Rings of Brighthearth
43%inclusion9 decks21 decks
42%synergy
Cryogen Relic
43%inclusion3 decks7 decks
42%synergy
Nim Deathmantle
38%inclusion8 decks21 decks
38%synergy
Salvaging Station
33%inclusion7 decks21 decks
33%synergy
Summoning Station
33%inclusion7 decks21 decks
33%synergy
Myr Turbine
33%inclusion7 decks21 decks
33%synergy
Semblance Anvil
33%inclusion7 decks21 decks
33%synergy
Trading Post
33%inclusion7 decks21 decks
33%synergy
Mycosynth Lattice
33%inclusion7 decks21 decks
33%synergy
Aether Spellbomb
33%inclusion3 decks9 decks
32%synergy
Staff of Domination
33%inclusion7 decks21 decks
32%synergy
Cloud Key
33%inclusion7 decks21 decks
31%synergy
Pyrite Spellbomb
30%inclusion3 decks10 decks
30%synergy
Mimic Vat
29%inclusion6 decks21 decks
28%synergy
Nuka-Cola Vending Machine
29%inclusion6 decks21 decks
27%synergy
Manifold Key
29%inclusion6 decks21 decks
27%synergy
Sensei's Divining Top
29%inclusion6 decks21 decks
24%synergy
Lightning Greaves
29%inclusion6 decks21 decks
4%synergy
Flayer Husk
24%inclusion5 decks21 decks
24%synergy
Retrofitter Foundry
24%inclusion5 decks21 decks
23%synergy
Transmutation Font
24%inclusion5 decks21 decks
23%synergy
Mirrorworks
24%inclusion5 decks21 decks
23%synergy
Darksteel Forge
24%inclusion5 decks21 decks
23%synergy
Forsaken Monument
24%inclusion5 decks21 decks
22%synergy
Altar of Dementia
24%inclusion5 decks21 decks
22%synergy
Ugin's Nexus
19%inclusion4 decks21 decks
19%synergy
Mindslaver
19%inclusion4 decks21 decks
19%synergy
Welding Jar
19%inclusion4 decks21 decks
19%synergy
Spine of Ish Sah
19%inclusion4 decks21 decks
18%synergy
Moonsilver Key
19%inclusion4 decks21 decks
18%synergy
Ichor Wellspring
19%inclusion4 decks21 decks
17%synergy
Expedition Map
19%inclusion4 decks21 decks
16%synergy
Ravenous Amulet
15%inclusion3 decks20 decks
15%synergy
Deathrender
14%inclusion3 decks21 decks
14%synergy
Magistrate's Scepter
14%inclusion3 decks21 decks
14%synergy
Planar Bridge
14%inclusion3 decks21 decks
14%synergy
Mechtitan Core
14%inclusion3 decks21 decks
14%synergy
Animation Module
14%inclusion3 decks21 decks
14%synergy
Cauldron of Souls
14%inclusion3 decks21 decks
14%synergy
Lembas
14%inclusion3 decks21 decks
14%synergy
Genesis Chamber
14%inclusion3 decks21 decks
14%synergy
Blade of the Bloodchief
14%inclusion3 decks21 decks
14%synergy
Mycosynth Wellspring
14%inclusion3 decks21 decks
14%synergy
Contagion Engine
14%inclusion3 decks21 decks
13%synergy
Enchantments
Spirit Loop
43%inclusion3 decks7 decks
42%synergy
Planeswalkers
Tezzeret, Cruel Captain
21%inclusion3 decks14 decks
20%synergy
Ugin, the Ineffable
19%inclusion4 decks21 decks
18%synergy
Karn, the Great Creator
14%inclusion3 decks21 decks
13%synergy
Artifacts
Sol Ring
81%inclusion17 decks21 decks
-2%synergy
Dubious Delicacy
60%inclusion3 decks5 decks
60%synergy
Boros Signet
60%inclusion3 decks5 decks
41%synergy
Talisman of Conviction
60%inclusion3 decks5 decks
36%synergy
Basalt Monolith
52%inclusion11 decks21 decks
50%synergy
Voltaic Key
48%inclusion10 decks21 decks
47%synergy
Mystic Forge
48%inclusion10 decks21 decks
45%synergy
Thran Dynamo
48%inclusion10 decks21 decks
43%synergy
Repurposing Bay
44%inclusion4 decks9 decks
43%synergy
Necrogen Spellbomb
43%inclusion3 decks7 decks
43%synergy
Blasting Station
43%inclusion9 decks21 decks
42%synergy
Rings of Brighthearth
43%inclusion9 decks21 decks
42%synergy
Cryogen Relic
43%inclusion3 decks7 decks
42%synergy
Arcane Signet
43%inclusion9 decks21 decks
-29%synergy
Nim Deathmantle
38%inclusion8 decks21 decks
38%synergy
Gilded Lotus
38%inclusion8 decks21 decks
35%synergy
Salvaging Station
33%inclusion7 decks21 decks
33%synergy
Summoning Station
33%inclusion7 decks21 decks
33%synergy
Myr Turbine
33%inclusion7 decks21 decks
33%synergy
Semblance Anvil
33%inclusion7 decks21 decks
33%synergy
Trading Post
33%inclusion7 decks21 decks
33%synergy
Mycosynth Lattice
33%inclusion7 decks21 decks
33%synergy
Aether Spellbomb
33%inclusion3 decks9 decks
32%synergy
Staff of Domination
33%inclusion7 decks21 decks
32%synergy
Cloud Key
33%inclusion7 decks21 decks
31%synergy
Pyrite Spellbomb
30%inclusion3 decks10 decks
30%synergy
Mimic Vat
29%inclusion6 decks21 decks
28%synergy
Dreamstone Hedron
29%inclusion6 decks21 decks
28%synergy
Nuka-Cola Vending Machine
29%inclusion6 decks21 decks
27%synergy
Manifold Key
29%inclusion6 decks21 decks
27%synergy
Hedron Archive
29%inclusion6 decks21 decks
26%synergy
Everflowing Chalice
29%inclusion6 decks21 decks
24%synergy
Sensei's Divining Top
29%inclusion6 decks21 decks
24%synergy
Lightning Greaves
29%inclusion6 decks21 decks
4%synergy
Flayer Husk
24%inclusion5 decks21 decks
24%synergy
Retrofitter Foundry
24%inclusion5 decks21 decks
23%synergy
Transmutation Font
24%inclusion5 decks21 decks
23%synergy
Mirrorworks
24%inclusion5 decks21 decks
23%synergy
Darksteel Forge
24%inclusion5 decks21 decks
23%synergy
Forsaken Monument
24%inclusion5 decks21 decks
22%synergy
Altar of Dementia
24%inclusion5 decks21 decks
22%synergy
Mox Opal
24%inclusion5 decks21 decks
20%synergy
Lotus Petal
24%inclusion5 decks21 decks
17%synergy
Solar Array
23%inclusion3 decks13 decks
23%synergy
Ugin's Nexus
19%inclusion4 decks21 decks
19%synergy
Mindslaver
19%inclusion4 decks21 decks
19%synergy
Welding Jar
19%inclusion4 decks21 decks
19%synergy
Spine of Ish Sah
19%inclusion4 decks21 decks
18%synergy
Moonsilver Key
19%inclusion4 decks21 decks
18%synergy
Chromatic Orrery
19%inclusion4 decks21 decks
18%synergy
Utility Lands
Susur Secundi, Void Altar
60%inclusion3 decks5 decks
58%synergy
Treasure Vault
48%inclusion10 decks21 decks
45%synergy
Buried Ruin
48%inclusion10 decks21 decks
43%synergy
Inventors' Fair
43%inclusion9 decks21 decks
39%synergy
Secluded Starforge
33%inclusion4 decks12 decks
33%synergy
War Room
33%inclusion7 decks21 decks
28%synergy
Urza's Power Plant
29%inclusion6 decks21 decks
27%synergy
Urza's Mine
29%inclusion6 decks21 decks
27%synergy
Urza's Tower
29%inclusion6 decks21 decks
27%synergy
Urza's Saga
29%inclusion6 decks21 decks
22%synergy
Shrine of the Forsaken Gods
24%inclusion5 decks21 decks
23%synergy
Rogue's Passage
24%inclusion5 decks21 decks
4%synergy
Reliquary Tower
24%inclusion5 decks21 decks
-6%synergy
Zhalfirin Void
19%inclusion4 decks21 decks
18%synergy
Urza's Workshop
19%inclusion4 decks21 decks
18%synergy
Blast Zone
19%inclusion4 decks21 decks
18%synergy
Urza's Factory
14%inclusion3 decks21 decks
14%synergy
Tomb of the Spirit Dragon
14%inclusion3 decks21 decks
13%synergy
Crystal Vein
14%inclusion3 decks21 decks
13%synergy
Guildless Commons
14%inclusion3 decks21 decks
13%synergy
Wasteland
14%inclusion3 decks21 decks
13%synergy
Strip Mine
14%inclusion3 decks21 decks
12%synergy
Mana Artifacts
Sol Ring
81%inclusion17 decks21 decks
-2%synergy
Boros Signet
60%inclusion3 decks5 decks
41%synergy
Talisman of Conviction
60%inclusion3 decks5 decks
36%synergy
Basalt Monolith
52%inclusion11 decks21 decks
50%synergy
Thran Dynamo
48%inclusion10 decks21 decks
43%synergy
Arcane Signet
43%inclusion9 decks21 decks
-29%synergy
Gilded Lotus
38%inclusion8 decks21 decks
35%synergy
Dreamstone Hedron
29%inclusion6 decks21 decks
28%synergy
Hedron Archive
29%inclusion6 decks21 decks
26%synergy
Everflowing Chalice
29%inclusion6 decks21 decks
24%synergy
Mox Opal
24%inclusion5 decks21 decks
20%synergy
Lotus Petal
24%inclusion5 decks21 decks
17%synergy
Solar Array
23%inclusion3 decks13 decks
23%synergy
Chromatic Orrery
19%inclusion4 decks21 decks
18%synergy
Commander's Sphere
19%inclusion4 decks21 decks
8%synergy
Mind Stone
19%inclusion4 decks21 decks
5%synergy
Thought Vessel
19%inclusion4 decks21 decks
2%synergy
Chromatic Sphere
14%inclusion3 decks21 decks
14%synergy
Victory Chimes
14%inclusion3 decks21 decks
14%synergy
Lands
Rustvale Bridge
80%inclusion4 decks5 decks
75%synergy
Battlefield Forge
80%inclusion4 decks5 decks
50%synergy
Sacred Foundry
80%inclusion4 decks5 decks
43%synergy
Sunscorched Divide
60%inclusion3 decks5 decks
53%synergy
Sunbillow Verge
60%inclusion3 decks5 decks
52%synergy
Rugged Prairie
60%inclusion3 decks5 decks
44%synergy
Sundown Pass
60%inclusion3 decks5 decks
44%synergy
Spectator Seating
60%inclusion3 decks5 decks
38%synergy
Clifftop Retreat
60%inclusion3 decks5 decks
24%synergy
Command Tower
48%inclusion10 decks21 decks
-27%synergy
Darkslick Shores
43%inclusion3 decks7 decks
38%synergy
Sunken Hollow
43%inclusion3 decks7 decks
9%synergy
Watery Grave
43%inclusion3 decks7 decks
1%synergy
Power Depot
19%inclusion4 decks21 decks
18%synergy
The Mycosynth Gardens
19%inclusion4 decks21 decks
17%synergy
Glimmervoid
14%inclusion3 decks21 decks
14%synergy
Gemstone Caverns
14%inclusion3 decks21 decks
9%synergy
Reflecting Pool
14%inclusion3 decks21 decks
9%synergy
Mana Confluence
14%inclusion3 decks21 decks
7%synergy
City of Brass
14%inclusion3 decks21 decks
7%synergy
Arid Mesa
14%inclusion3 decks21 decks
4%synergy
Exotic Orchard
14%inclusion3 decks21 decks
-22%synergy