Karn, the Great Creator + Doubling Cube + Umbral Mantle
Karn, the Great Creator
Doubling Cube
Umbral Mantle
Requires
Karn, the Great Creator must be on the battlefield.
Doubling Cube must be on the battlefield.
Umbral Mantle must be on the battlefield.
Doubling Cube does not have summoning sickness.
Mana needed: 
Steps
- Activate Karn's first loyalty ability by putting a loyalty counter on it, causing Doubling Cube to become an artifact creature until end of turn.
- Activate Umbral Mantle's equip ability by paying
, attaching it to Doubling Cube. - Float at least in your mana pool.
- Activate Doubling Cube by paying
and tapping it, adding at least 
. - Activate Doubling Cube by paying and untapping it, giving it +2/+2 until end of turn.
- Repeat from step 4.
Results
Infinitely large Doubling Cube until end of turn. Infinite mana permanents you control can produce.
The Peregrine Dynamo
1.09% of 736 decks
8 decks
Karn, Silver Golem
0.81% of 1112 decks
9 decks
Omarthis, Ghostfire Initiate
0.45% of 1573 decks
7 decks
Karn, Legacy Reforged
0.14% of 3524 decks
5 decks
High Synergy Cards
Basalt Monolith
92% of 49 decks
+89% synergy
Top Cards
Swords to Plowshares
100% of 4 decks
+71% synergy
Rings of Brighthearth
88% of 49 decks
+86% synergy
Thran Dynamo
88% of 49 decks
+83% synergy
Forsaken Monument
88% of 48 decks
+86% synergy
Mystic Forge
86% of 49 decks
+83% synergy
Foundry Inspector
82% of 49 decks
+77% synergy
Sensei's Divining Top
82% of 49 decks
+76% synergy
Voltaic Construct
80% of 49 decks
+79% synergy
Staff of Domination
80% of 49 decks
+78% synergy
Voltaic Key
76% of 49 decks
+75% synergy
Creatures
Selvala, Heart of the Wilds
75% of 4 decks
+73% synergy
Seedborn Muse
75% of 4 decks
+71% synergy
Metalworker
71% of 49 decks
+71% synergy
Goblin Welder
60% of 5 decks
+59% synergy
Glaring Fleshraker
60% of 10 decks
+57% synergy
Scrap Trawler
49% of 49 decks
+47% synergy
Palladium Myr
47% of 49 decks
+45% synergy
Walking Ballista
47% of 49 decks
+44% synergy
Cogwork Assembler
45% of 49 decks
+45% synergy
Karn, Legacy Reforged
44% of 36 decks
+44% synergy
Liberator, Urza's Battlethopter
41% of 46 decks
+40% synergy
Karn, Silver Golem
39% of 49 decks
+39% synergy
Syr Ginger, the Meal Ender
37% of 27 decks
+36% synergy
Myr Retriever
37% of 49 decks
+35% synergy
Kuldotha Forgemaster
35% of 49 decks
+34% synergy
Mycosynth Golem
33% of 49 decks
+32% synergy
Wurmcoil Engine
33% of 49 decks
+31% synergy
Junk Diver
29% of 49 decks
+28% synergy
Blightsteel Colossus
29% of 49 decks
+27% synergy
Myr Galvanizer
27% of 49 decks
+26% synergy
Ulamog, the Defiler
25% of 12 decks
+23% synergy
Coretapper
24% of 49 decks
+24% synergy
Cathodion
24% of 49 decks
+24% synergy
Myr Welder
24% of 49 decks
+24% synergy
Jhoira's Familiar
24% of 49 decks
+23% synergy
Myr Battlesphere
24% of 49 decks
+22% synergy
Dross Scorpion
22% of 49 decks
+22% synergy
Soul of New Phyrexia
22% of 49 decks
+22% synergy
Skittering Cicada
22% of 32 decks
+21% synergy
Wandering Archaic
21% of 48 decks
+19% synergy
Kozilek, Butcher of Truth
20% of 49 decks
+19% synergy
Painter's Servant
18% of 49 decks
+18% synergy
Scarecrone
18% of 49 decks
+18% synergy
Crashing Drawbridge
18% of 49 decks
+17% synergy
Crackdown Construct
16% of 49 decks
+16% synergy
Spawnsire of Ulamog
16% of 49 decks
+16% synergy
Hedron Crawler
16% of 49 decks
+16% synergy
Endbringer
16% of 49 decks
+15% synergy
Void Winnower
16% of 49 decks
+15% synergy
Phyrexian Triniform
15% of 48 decks
+14% synergy
Toymaker
14% of 49 decks
+14% synergy
Scrapyard Recombiner
14% of 49 decks
+14% synergy
Manakin
14% of 49 decks
+14% synergy
Workshop Assistant
14% of 49 decks
+14% synergy
Millikin
14% of 49 decks
+13% synergy
Metalwork Colossus
14% of 49 decks
+13% synergy
Platinum Angel
14% of 49 decks
+13% synergy
Kozilek, the Great Distortion
14% of 49 decks
+13% synergy
Plague Myr
14% of 49 decks
+13% synergy
Shimmer Myr
14% of 49 decks
+13% synergy
Instants
Path to Exile
75% of 4 decks
+55% synergy
Eldritch Immunity
57% of 7 decks
+55% synergy
Null Elemental Blast
50% of 12 decks
+48% synergy
Kozilek's Command
40% of 10 decks
+38% synergy
Warping Wail
27% of 49 decks
+26% synergy
Spatial Contortion
20% of 49 decks
+20% synergy
Desecrate Reality
16% of 32 decks
+15% synergy
Scour from Existence
10% of 49 decks
+10% synergy
Titan's Presence
10% of 49 decks
+10% synergy
Not of This World
10% of 49 decks
+9% synergy
Sorceries
Faithless Looting
60% of 5 decks
+52% synergy
All Is Dust
39% of 49 decks
+37% synergy
Rise of the Eldrazi
19% of 32 decks
+17% synergy
Introduction to Annihilation
15% of 48 decks
+14% synergy
Introduction to Prophecy
12% of 48 decks
+12% synergy
Utility Artifacts
Clock of Omens
67% of 49 decks
+66% synergy
Krark-Clan Ironworks
65% of 49 decks
+64% synergy
Chimil, the Inner Sun
61% of 23 decks
+58% synergy
Ashnod's Altar
59% of 49 decks
+51% synergy
Manifold Key
57% of 49 decks
+56% synergy
Unwinding Clock
51% of 49 decks
+48% synergy
Vexing Bauble
50% of 8 decks
+48% synergy
Mycosynth Lattice
47% of 49 decks
+46% synergy
Cloud Key
47% of 49 decks
+45% synergy
Heartstone
45% of 49 decks
+44% synergy
Sculpting Steel
45% of 49 decks
+43% synergy
The One Ring
38% of 40 decks
+29% synergy
Expedition Map
37% of 49 decks
+33% synergy
Aetherflux Reservoir
37% of 49 decks
+33% synergy
Lightning Greaves
37% of 49 decks
+11% synergy
Mirage Mirror
35% of 49 decks
+33% synergy
Moonsilver Key
34% of 47 decks
+33% synergy
Magistrate's Scepter
31% of 49 decks
+30% synergy
Nim Deathmantle
31% of 49 decks
+30% synergy
Lithoform Engine
29% of 48 decks
+28% synergy
Planar Bridge
29% of 49 decks
+28% synergy
Realmbreaker, the Invasion Tree
28% of 36 decks
+27% synergy
Spine of Ish Sah
27% of 49 decks
+26% synergy
Darksteel Forge
27% of 49 decks
+25% synergy
Darksteel Monolith
25% of 32 decks
+24% synergy
Sword of the Paruns
24% of 49 decks
+24% synergy
Mind's Eye
24% of 49 decks
+24% synergy
Helm of the Host
24% of 49 decks
+21% synergy
Swiftfoot Boots
24% of 49 decks
-3% synergy
Animation Module
22% of 49 decks
+22% synergy
Mirrorworks
22% of 49 decks
+22% synergy
Contagion Engine
22% of 49 decks
+21% synergy
Phyrexian Altar
22% of 49 decks
+18% synergy
Maskwood Nexus
21% of 48 decks
+18% synergy
Memory Jar
20% of 49 decks
+20% synergy
The Immortal Sun
20% of 49 decks
+20% synergy
Tamiyo's Journal
20% of 49 decks
+20% synergy
Helm of Awakening
20% of 49 decks
+20% synergy
Strionic Resonator
20% of 49 decks
+17% synergy
Portal to Phyrexia
20% of 46 decks
+18% synergy
Agatha's Soul Cauldron
19% of 27 decks
+17% synergy
Energy Chamber
18% of 49 decks
+18% synergy
Blasting Station
18% of 49 decks
+18% synergy
Semblance Anvil
18% of 49 decks
+18% synergy
Nevinyrral's Disk
18% of 49 decks
+17% synergy
Horizon Stone
17% of 48 decks
+16% synergy
Commander's Plate
17% of 48 decks
+14% synergy
Salvaging Station
16% of 49 decks
+16% synergy
Grindstone
16% of 49 decks
+16% synergy
Grinding Station
16% of 49 decks
+16% synergy
Enchantments
Rhystic Study
100% of 3 decks
+86% synergy
Echoes of Eternity
42% of 12 decks
+39% synergy
Planeswalkers
Ugin, the Ineffable
71% of 49 decks
+69% synergy
Karn, Living Legacy
30% of 47 decks
+29% synergy
Ugin, the Spirit Dragon
20% of 49 decks
+19% synergy
Karn Liberated
12% of 49 decks
+12% synergy
Karn, Scion of Urza
10% of 49 decks
+10% synergy
Utility Lands
Ancient Den
75% of 4 decks
+72% synergy
Buried Ruin
73% of 49 decks
+68% synergy
Inventors' Fair
71% of 49 decks
+67% synergy
Urza's Saga
60% of 48 decks
+53% synergy
Great Furnace
60% of 5 decks
+57% synergy
War Room
58% of 48 decks
+52% synergy
Deserted Temple
57% of 49 decks
+57% synergy
Darksteel Citadel
57% of 49 decks
+53% synergy
Scorched Ruins
55% of 49 decks
+55% synergy
Urza's Power Plant
55% of 49 decks
+53% synergy
Urza's Tower
55% of 49 decks
+53% synergy
Urza's Mine
55% of 49 decks
+53% synergy
Ancient Tomb
55% of 49 decks
+45% synergy
Thespian's Stage
51% of 49 decks
+48% synergy
Crystal Vein
49% of 49 decks
+48% synergy
Reliquary Tower
47% of 49 decks
+18% synergy
Urza's Workshop
41% of 46 decks
+40% synergy
Command Beacon
41% of 49 decks
+36% synergy
Sanctum of Ugin
37% of 49 decks
+36% synergy
Mishra's Workshop
35% of 49 decks
+34% synergy
Shrine of the Forsaken Gods
35% of 49 decks
+33% synergy
Fomori Vault
33% of 12 decks
+31% synergy
Zhalfirin Void
33% of 49 decks
+32% synergy
Treasure Vault
29% of 48 decks
+27% synergy
Miren, the Moaning Well
29% of 49 decks
+28% synergy
Strip Mine
27% of 49 decks
+23% synergy
Karn's Bastion
27% of 49 decks
+21% synergy
Rogue's Passage
27% of 49 decks
+7% synergy
Bonders' Enclave
25% of 48 decks
+23% synergy
Blast Zone
24% of 49 decks
+23% synergy
Emergence Zone
24% of 49 decks
+22% synergy
Petrified Field
22% of 49 decks
+22% synergy
Sequestered Stash
22% of 49 decks
+22% synergy
Arcane Lighthouse
22% of 49 decks
+21% synergy
Mikokoro, Center of the Sea
22% of 49 decks
+21% synergy
Temple of the False God
22% of 49 decks
+13% synergy
Nephalia Academy
20% of 49 decks
+20% synergy
Haunted Fengraf
20% of 49 decks
+20% synergy
Blasted Landscape
20% of 49 decks
+20% synergy
Urza's Factory
20% of 49 decks
+20% synergy
City of Traitors
20% of 49 decks
+20% synergy
Wasteland
20% of 49 decks
+19% synergy
High Market
20% of 49 decks
+17% synergy
Geier Reach Sanitarium
20% of 49 decks
+17% synergy
Cryptic Caves
16% of 49 decks
+16% synergy
Eldrazi Temple
16% of 49 decks
+15% synergy
Tomb of the Spirit Dragon
16% of 49 decks
+15% synergy
Underdark Rift
15% of 48 decks
+14% synergy
Nesting Grounds
15% of 48 decks
+13% synergy
Eye of Ugin
14% of 49 decks
+14% synergy
Mana Artifacts
Sol Ring
100% of 49 decks
+15% synergy
Mana Vault
67% of 49 decks
+61% synergy
Mind Stone
63% of 49 decks
+46% synergy
Everflowing Chalice
59% of 49 decks
+54% synergy
Mana Crypt
59% of 49 decks
+48% synergy
Grim Monolith
55% of 49 decks
+53% synergy
Thought Vessel
45% of 49 decks
+28% synergy
Liquimetal Torque
35% of 48 decks
+32% synergy
Mox Opal
33% of 49 decks
+28% synergy
Worn Powerstone
31% of 49 decks
+28% synergy
Gilded Lotus
31% of 49 decks
+27% synergy
Dreamstone Hedron
29% of 49 decks
+27% synergy
Chromatic Orrery
27% of 48 decks
+25% synergy
Arcane Signet
22% of 49 decks
-49% synergy
Jeweled Lotus
21% of 48 decks
+13% synergy
Hedron Archive
20% of 49 decks
+17% synergy
Mox Diamond
20% of 49 decks
+16% synergy
The Mightstone and Weakstone
20% of 46 decks
+19% synergy
The Irencrag
19% of 27 decks
+18% synergy
Paradise Mantle
16% of 49 decks
+16% synergy
Powerstone Shard
14% of 49 decks
+14% synergy
Honor-Worn Shaku
14% of 49 decks
+14% synergy
Lotus Petal
14% of 49 decks
+8% synergy
Empowered Autogenerator
12% of 49 decks
+12% synergy
Fellwar Stone
12% of 49 decks
-9% synergy
Blinkmoth Urn
10% of 49 decks
+10% synergy
Staff of Compleation
10% of 41 decks
+8% synergy
Stonespeaker Crystal
9% of 47 decks
+8% synergy
Thran Turbine
8% of 49 decks
+8% synergy
Lion's Eye Diamond
8% of 49 decks
+6% synergy
Lotus Bloom
6% of 49 decks
+6% synergy
Chromatic Star
6% of 49 decks
+5% synergy
Lands
Battlefield Forge
100% of 3 decks
+94% synergy
Sacred Foundry
100% of 3 decks
+92% synergy
Urza's Cave
58% of 12 decks
+54% synergy
Planar Nexus
50% of 12 decks
+49% synergy
The Mycosynth Gardens
50% of 42 decks
+47% synergy
Talon Gates of Madara
43% of 7 decks
+38% synergy
Gallifrey Council Chamber
30% of 27 decks
+29% synergy
Cavern of Souls
27% of 49 decks
+20% synergy
Hall of Tagsin
26% of 46 decks
+26% synergy
The Grey Havens
24% of 33 decks
+22% synergy
Crystal Grotto
19% of 47 decks
+18% synergy
Command Tower
14% of 49 decks
-59% synergy
Demolition Field
13% of 46 decks
+10% synergy
Gemstone Caverns
12% of 49 decks
+7% synergy
Plaza of Heroes
9% of 47 decks
+5% synergy
Exotic Orchard
8% of 49 decks
-27% synergy
Ash Barrens
6% of 49 decks
+1% synergy
Mana Confluence
6% of 49 decks
-1% synergy