Mikaeus, the Unhallowed + Crystalline Crawler + Phyrexian Altar

Mikaeus, the Unhallowed
Crystalline Crawler
Phyrexian Altar

Requires
All permanents on the battlefield.
Steps
  1. If Crystalline Crawler has a +1/+1 counter on it, activate its first ability by removing a +1/+1 counter from it, adding one mana of any color.
  2. Repeat step 1 until Crystalline Crawler has no +1/+1 counters on it.
  3. Activate Phyrexian Altar by sacrificing Crystalline Crawler, adding one mana of any color.
  4. Crystalline Crawler dies, triggering its undying ability, returning it to the battlefield with a +1/+1 counter on it.
  5. Repeat.
Results
Infinite colored mana. Infinite ETB. Infinite LTB. Infinite death triggers. Infinite sacrifice triggers.

Top Commanders (3)
Mikaeus, the Unhallowed
3.50% of 972 decks 34 decks
Ghave, Guru of Spores
0.70% of 5569 decks 39 decks
Marchesa, the Black Rose
0.20% of 8055 decks 16 decks
High Synergy Cards (4)
Good-Fortune Unicorn
82% of 45 decks +82% synergy
Cathars' Crusade
80% of 46 decks +77% synergy
Hardened Scales
70% of 50 decks +67% synergy
Doubling Season
64% of 50 decks +60% synergy
Top Cards (10)
Ashnod's Altar
88% of 112 decks +80% synergy
Walking Ballista
67% of 111 decks +64% synergy
Baleful Strix
61% of 23 decks +57% synergy
Blood Artist
61% of 112 decks +54% synergy
Goblin Bombardment
58% of 19 decks +54% synergy
Viscera Seer
57% of 112 decks +51% synergy
Anointed Procession
57% of 46 decks +52% synergy
Swords to Plowshares
57% of 46 decks +28% synergy
Zulaport Cutthroat
55% of 112 decks +49% synergy
Birds of Paradise
52% of 50 decks +40% synergy
Creatures (50)
Kami of Whispered Hopes
60% of 5 decks +55% synergy
Winding Constrictor
50% of 50 decks +49% synergy
Mondrak, Glory Dominus
50% of 14 decks +45% synergy
Chatterfang, Squirrel General
49% of 47 decks +48% synergy
Corpsejack Menace
48% of 50 decks +47% synergy
Corpse Knight
48% of 46 decks +46% synergy
Carrion Feeder
47% of 112 decks +44% synergy
Triskelion
46% of 112 decks +45% synergy
Cryptic Trilobite
45% of 110 decks +45% synergy
Elas il-Kor, Sadistic Pilgrim
45% of 22 decks +42% synergy
Utopia Mycon
44% of 50 decks +44% synergy
Mazirek, Kraul Death Priest
44% of 50 decks +43% synergy
Young Wolf
42% of 50 decks +42% synergy
Devoted Druid
42% of 50 decks +41% synergy
Pitiless Plunderer
40% of 110 decks +36% synergy
Sakura-Tribe Elder
40% of 50 decks +30% synergy
Glen Elendra Archmage
39% of 23 decks +38% synergy
Renata, Called to the Hunt
39% of 49 decks +38% synergy
Kitchen Finks
38% of 45 decks +38% synergy
Flayer of the Hatebound
37% of 19 decks +36% synergy
Slimefoot, the Stowaway
37% of 49 decks +36% synergy
Conclave Mentor
36% of 44 decks +35% synergy
Ivy Lane Denizen
36% of 50 decks +35% synergy
River Kelpie
35% of 23 decks +34% synergy
Cruel Celebrant
35% of 46 decks +33% synergy
Eternal Witness
34% of 50 decks +23% synergy
Enthusiastic Mechanaut
33% of 15 decks +32% synergy
Yawgmoth, Thran Physician
33% of 110 decks +31% synergy
Strangleroot Geist
32% of 50 decks +32% synergy
Scurry Oak
32% of 47 decks +31% synergy
Juniper Order Ranger
31% of 45 decks +31% synergy
Esper Sentinel
31% of 42 decks +21% synergy
Reveillark
30% of 46 decks +29% synergy
Karmic Guide
30% of 46 decks +28% synergy
Puppeteer Clique
30% of 112 decks +29% synergy
Saffi Eriksdotter
29% of 45 decks +28% synergy
Mycoloth
28% of 50 decks +27% synergy
Arcbound Tracker
28% of 18 decks +28% synergy
Tatterkite
27% of 112 decks +27% synergy
Sigil Captain
27% of 45 decks +27% synergy
Avacyn's Pilgrim
27% of 45 decks +23% synergy
Mayhem Devil
26% of 19 decks +24% synergy
Dockside Extortionist
26% of 19 decks +18% synergy
Spellskite
26% of 23 decks +25% synergy
Padeem, Consul of Innovation
26% of 23 decks +24% synergy
Etherium Sculptor
26% of 23 decks +23% synergy
Phyrexian Metamorph
26% of 23 decks +23% synergy
Spark Double
26% of 23 decks +22% synergy
Vorinclex, Monstrous Raider
26% of 47 decks +23% synergy
Putrid Goblin
25% of 110 decks +25% synergy
Instants (50)
Vampiric Tutor
46% of 112 decks +36% synergy
Assassin's Trophy
39% of 49 decks +33% synergy
Path to Exile
37% of 46 decks +19% synergy
Swan Song
35% of 23 decks +26% synergy
Cyclonic Rift
35% of 23 decks +20% synergy
Counterspell
35% of 23 decks +13% synergy
Dark Ritual
33% of 112 decks +22% synergy
Anguished Unmaking
33% of 46 decks +27% synergy
Enlightened Tutor
33% of 46 decks +24% synergy
Beast Within
32% of 50 decks +13% synergy
Chaos Warp
32% of 19 decks +16% synergy
Eladamri's Call
31% of 45 decks +28% synergy
Mana Drain
30% of 23 decks +23% synergy
Worldly Tutor
28% of 50 decks +21% synergy
Fierce Guardianship
27% of 22 decks +19% synergy
Negate
26% of 23 decks +14% synergy
Teferi's Protection
24% of 46 decks +14% synergy
Terminate
21% of 19 decks +16% synergy
Chord of Calling
18% of 50 decks +15% synergy
Putrefy
18% of 50 decks +14% synergy
Heroic Intervention
18% of 50 decks +5% synergy
Generous Gift
17% of 46 decks +6% synergy
Infernal Grasp
17% of 100 decks +12% synergy
Fire Covenant
16% of 19 decks +15% synergy
Bedevil
16% of 19 decks +12% synergy
Village Rites
15% of 107 decks +10% synergy
Culling the Weak
14% of 112 decks +12% synergy
Arcane Denial
13% of 23 decks +4% synergy
Deadly Rollick
13% of 108 decks +8% synergy
Veil of Summer
12% of 49 decks +9% synergy
Inspiring Call
12% of 50 decks +9% synergy
Entomb
12% of 112 decks +8% synergy
Mortify
11% of 46 decks +8% synergy
Imp's Mischief
11% of 112 decks +10% synergy
Defile
10% of 110 decks +8% synergy
Krosan Grip
10% of 50 decks +5% synergy
Dismember
10% of 112 decks +8% synergy
Cabal Ritual
10% of 112 decks +7% synergy
Deadly Dispute
10% of 103 decks +4% synergy
Tragic Slip
9% of 112 decks +7% synergy
Abzan Charm
9% of 45 decks +8% synergy
Aura Mutation
9% of 45 decks +8% synergy
Silence
9% of 46 decks +6% synergy
Ad Nauseam
8% of 112 decks +6% synergy
Abrupt Decay
8% of 50 decks +6% synergy
Undying Malice
8% of 91 decks +7% synergy
Plumb the Forbidden
8% of 106 decks +6% synergy
Flawless Maneuver
7% of 45 decks +3% synergy
Utter End
7% of 46 decks +4% synergy
Shred Memory
6% of 112 decks +6% synergy
Sorceries (41)
Demonic Tutor
60% of 112 decks +47% synergy
Blasphemous Act
47% of 19 decks +31% synergy
Diabolic Intent
39% of 112 decks +35% synergy
Kodama's Reach
34% of 50 decks +18% synergy
Cultivate
34% of 50 decks +11% synergy
Nature's Lore
28% of 50 decks +14% synergy
Farseek
28% of 50 decks +13% synergy
Grim Tutor
27% of 112 decks +24% synergy
Toxic Deluge
27% of 112 decks +19% synergy
Green Sun's Zenith
24% of 50 decks +21% synergy
Feed the Swarm
23% of 106 decks +13% synergy
Damnation
22% of 112 decks +17% synergy
Rampant Growth
22% of 50 decks +5% synergy
Three Visits
20% of 50 decks +9% synergy
Diabolic Tutor
20% of 112 decks +16% synergy
Reanimate
20% of 112 decks +13% synergy
Natural Order
18% of 50 decks +17% synergy
Night's Whisper
16% of 112 decks +11% synergy
Vandalblast
16% of 19 decks +7% synergy
Bubbling Muck
13% of 112 decks +13% synergy
Eerie Ultimatum
13% of 45 decks +12% synergy
Vindicate
13% of 46 decks +11% synergy
Fabricate
13% of 23 decks +10% synergy
Torment of Hailfire
13% of 111 decks +10% synergy
Damn
12% of 41 decks +8% synergy
Imperial Seal
12% of 112 decks +9% synergy
Read the Bones
12% of 112 decks +7% synergy
Sign in Blood
12% of 112 decks +6% synergy
Finale of Devastation
10% of 49 decks +6% synergy
Eldritch Evolution
10% of 50 decks +8% synergy
Exsanguinate
9% of 112 decks +6% synergy
Idyllic Tutor
9% of 46 decks +6% synergy
Beseech the Queen
8% of 112 decks +7% synergy
Victimize
8% of 112 decks +2% synergy
Profane Tutor
8% of 106 decks +5% synergy
Bala Ged Recovery
6% of 47 decks +1% synergy
Dimir Machinations
6% of 112 decks +6% synergy
Living Death
6% of 112 decks +3% synergy
Primal Growth
6% of 50 decks +5% synergy
Triumph of the Hordes
6% of 50 decks +4% synergy
Persist
6% of 104 decks +4% synergy
Utility Artifacts (28)
Skullclamp
52% of 112 decks +39% synergy
Altar of Dementia
49% of 112 decks +46% synergy
Lightning Greaves
30% of 112 decks +5% synergy
Blasting Station
24% of 112 decks +23% synergy
The Ozolith
24% of 109 decks +20% synergy
Swiftfoot Boots
21% of 112 decks -8% synergy
Altar of the Brood
20% of 112 decks +18% synergy
Time Sieve
17% of 23 decks +17% synergy
Cauldron of Souls
17% of 112 decks +16% synergy
Jet Medallion
17% of 112 decks +15% synergy
Sensei's Divining Top
15% of 112 decks +9% synergy
The Great Henge
14% of 49 decks +10% synergy
Bolas's Citadel
14% of 110 decks +8% synergy
Animation Module
12% of 112 decks +12% synergy
Birthing Pod
12% of 50 decks +11% synergy
Wishclaw Talisman
9% of 110 decks +6% synergy
Aetherflux Reservoir
9% of 112 decks +4% synergy
Desecrated Tomb
8% of 110 decks +8% synergy
Bontu's Monument
8% of 111 decks +6% synergy
Ghost Lantern
8% of 65 decks +7% synergy
Spawning Pit
7% of 112 decks +7% synergy
Contagion Engine
6% of 112 decks +5% synergy
Krark-Clan Ironworks
6% of 112 decks +5% synergy
Illusionist's Bracers
6% of 112 decks +5% synergy
Sword of Truth and Justice
5% of 110 decks +4% synergy
Eldrazi Monument
5% of 112 decks +4% synergy
Whip of Erebos
5% of 112 decks +3% synergy
Rings of Brighthearth
5% of 112 decks +3% synergy
Enchantments (48)
Simic Ascendancy
60% of 5 decks +59% synergy
All Will Be One
60% of 5 decks +58% synergy
Rhystic Study
48% of 23 decks +34% synergy
Aura Shards
47% of 45 decks +44% synergy
Parallel Lives
46% of 50 decks +43% synergy
Grave Pact
38% of 112 decks +36% synergy
Smothering Tithe
37% of 46 decks +25% synergy
Sneak Attack
37% of 19 decks +36% synergy
Sylvan Library
36% of 50 decks +29% synergy
Branching Evolution
35% of 48 decks +34% synergy
Primal Vigor
32% of 50 decks +31% synergy
Dictate of Erebos
29% of 112 decks +26% synergy
Necropotence
28% of 112 decks +25% synergy
Earthcraft
26% of 50 decks +26% synergy
Bastion of Remembrance
25% of 108 decks +22% synergy
Phyrexian Arena
24% of 112 decks +17% synergy
Cryptolith Rite
24% of 50 decks +22% synergy
The Meathook Massacre
21% of 100 decks +18% synergy
Retribution of the Ancients
20% of 112 decks +19% synergy
Growing Rites of Itlimoc
18% of 49 decks +16% synergy
Pattern of Rebirth
18% of 50 decks +18% synergy
Inexorable Tide
17% of 23 decks +16% synergy
Moldervine Reclamation
16% of 49 decks +14% synergy
Animate Dead
15% of 112 decks +10% synergy
Black Market
14% of 112 decks +12% synergy
Thran Vigil
13% of 38 decks +13% synergy
Fecundity
12% of 50 decks +11% synergy
Heartless Summoning
12% of 112 decks +11% synergy
Black Market Connections
11% of 64 decks +5% synergy
Awakening Zone
10% of 50 decks +9% synergy
Unspeakable Symbol
10% of 112 decks +9% synergy
Necromancy
9% of 112 decks +7% synergy
Phyrexian Reclamation
9% of 112 decks +7% synergy
Swift Reconfiguration
9% of 34 decks +8% synergy
Carnival of Souls
8% of 112 decks +8% synergy
Squirrel Nest
8% of 50 decks +8% synergy
Death's Presence
8% of 50 decks +7% synergy
Wild Growth
8% of 50 decks +3% synergy
Dance of the Dead
7% of 112 decks +6% synergy
Sanguine Bond
6% of 112 decks +3% synergy
Life and Limb
6% of 50 decks +6% synergy
Survival of the Fittest
6% of 50 decks +5% synergy
Concordant Crossroads
6% of 50 decks +5% synergy
Utopia Sprawl
6% of 50 decks +3% synergy
Agent of the Iron Throne
6% of 68 decks +4% synergy
Contamination
5% of 112 decks +5% synergy
Bitterblossom
5% of 112 decks +3% synergy
Exquisite Blood
5% of 112 decks +3% synergy
Planeswalkers (4)
Tezzeret, Master of the Bridge
22% of 23 decks +21% synergy
Daretti, Ingenious Iconoclast
16% of 19 decks +16% synergy
Liliana, Dreadhorde General
9% of 110 decks +7% synergy
Liliana of the Dark Realms
5% of 112 decks +5% synergy
Utility Lands (42)
Urborg, Tomb of Yawgmoth
48% of 112 decks +37% synergy
Phyrexian Tower
41% of 112 decks +37% synergy
Cabal Coffers
38% of 112 decks +31% synergy
Bojuka Bog
36% of 112 decks +20% synergy
Gavony Township
36% of 45 decks +33% synergy
Great Furnace
32% of 19 decks +28% synergy
Academy Ruins
30% of 23 decks +28% synergy
Seat of the Synod
30% of 23 decks +27% synergy
Boseiju, Who Endures
30% of 37 decks +20% synergy
Reliquary Tower
28% of 112 decks +0% synergy
Cabal Stronghold
25% of 110 decks +22% synergy
Gaea's Cradle
22% of 50 decks +19% synergy
Ancient Tomb
21% of 112 decks +10% synergy
Oran-Rief, the Vastwood
18% of 50 decks +15% synergy
High Market
17% of 112 decks +13% synergy
Nykthos, Shrine to Nyx
17% of 112 decks +11% synergy
Volrath's Stronghold
16% of 112 decks +15% synergy
Castle Locthwain
15% of 110 decks +12% synergy
Yavimaya, Cradle of Growth
15% of 104 decks +6% synergy
Takenuma, Abandoned Mire
14% of 85 decks +7% synergy
Dryad Arbor
14% of 50 decks +12% synergy
Otawara, Soaring City
14% of 22 decks +5% synergy
Urza's Saga
13% of 103 decks +5% synergy
Karn's Bastion
11% of 110 decks +6% synergy
Vault of the Archangel
11% of 46 decks +9% synergy
Buried Ruin
10% of 112 decks +4% synergy
Temple of the False God
10% of 112 decks -0% synergy
Vitu-Ghazi, the City-Tree
9% of 45 decks +9% synergy
Eiganjo, Seat of the Empire
9% of 34 decks +4% synergy
Lake of the Dead
8% of 112 decks +8% synergy
Command Beacon
8% of 112 decks +3% synergy
Grim Backwoods
8% of 50 decks +7% synergy
Vault of Whispers
7% of 112 decks +5% synergy
Forge of Heroes
6% of 110 decks +5% synergy
Field of the Dead
6% of 110 decks +3% synergy
Unholy Grotto
6% of 112 decks +6% synergy
Westvale Abbey
6% of 112 decks +5% synergy
Strip Mine
6% of 112 decks +3% synergy
Barren Moor
5% of 112 decks +3% synergy
Thespian's Stage
5% of 112 decks +3% synergy
Inventors' Fair
5% of 112 decks +1% synergy
Rogue's Passage
5% of 112 decks -12% synergy
Mana Artifacts (29)
Sol Ring
90% of 112 decks +6% synergy
Arcane Signet
66% of 110 decks -3% synergy
Talisman of Dominance
39% of 23 decks +32% synergy
Talisman of Creativity
38% of 16 decks +31% synergy
Mana Crypt
31% of 112 decks +20% synergy
Talisman of Indulgence
26% of 19 decks +21% synergy
Golgari Signet
26% of 50 decks +23% synergy
Selesnya Signet
24% of 45 decks +22% synergy
Orzhov Signet
24% of 46 decks +17% synergy
Dimir Signet
22% of 23 decks +13% synergy
Jeweled Lotus
22% of 106 decks +14% synergy
Rakdos Signet
21% of 19 decks +14% synergy
Fellwar Stone
18% of 112 decks -3% synergy
Mind Stone
17% of 112 decks -2% synergy
Mana Vault
15% of 112 decks +9% synergy
Talisman of Hierarchy
13% of 46 decks +8% synergy
Chromatic Lantern
12% of 112 decks +3% synergy
Talisman of Unity
11% of 45 decks +10% synergy
Talisman of Resilience
10% of 49 decks +8% synergy
Commander's Sphere
10% of 112 decks -7% synergy
Charcoal Diamond
9% of 112 decks +6% synergy
Chrome Mox
9% of 112 decks +2% synergy
Thought Vessel
9% of 112 decks -6% synergy
Lotus Petal
8% of 112 decks +2% synergy
Grim Monolith
7% of 112 decks +5% synergy
Mox Diamond
7% of 112 decks +3% synergy
Mox Opal
7% of 112 decks +3% synergy
Sceptre of Eternal Glory
7% of 43 decks +6% synergy
Thran Dynamo
5% of 112 decks +1% synergy
Lands (50)
Overgrown Tomb
84% of 50 decks +74% synergy
Godless Shrine
80% of 46 decks +71% synergy
Temple Garden
78% of 45 decks +69% synergy
Blood Crypt
74% of 19 decks +64% synergy
Xander's Lounge
73% of 15 decks +69% synergy
Watery Grave
70% of 23 decks +59% synergy
Hallowed Fountain
67% of 6 decks +57% synergy
Command Tower
62% of 112 decks -11% synergy
Breeding Pool
60% of 5 decks +51% synergy
Steam Vents
56% of 16 decks +47% synergy
Sunpetal Grove
53% of 45 decks +49% synergy
Luxury Suite
53% of 19 decks +47% synergy
Indatha Triome
51% of 45 decks +47% synergy
Arcane Sanctum
50% of 6 decks +46% synergy
Raffine's Tower
50% of 6 decks +46% synergy
Shivan Reef
50% of 16 decks +44% synergy
Woodland Cemetery
48% of 50 decks +43% synergy
Isolated Chapel
48% of 46 decks +42% synergy
Undergrowth Stadium
47% of 47 decks +41% synergy
Bountiful Promenade
47% of 45 decks +42% synergy
Sulfur Falls
44% of 16 decks +38% synergy
Morphic Pool
43% of 23 decks +37% synergy
Crumbling Necropolis
38% of 16 decks +34% synergy
Dragonskull Summit
37% of 19 decks +31% synergy
Vault of Champions
36% of 44 decks +30% synergy
Sandsteppe Citadel
36% of 45 decks +33% synergy
Llanowar Wastes
34% of 50 decks +29% synergy
Training Center
33% of 15 decks +27% synergy
Caves of Koilos
33% of 46 decks +27% synergy
Marsh Flats
32% of 112 decks +20% synergy
Drowned Catacomb
30% of 23 decks +25% synergy
Verdant Catacombs
29% of 112 decks +18% synergy
Twilight Mire
28% of 50 decks +26% synergy
Exotic Orchard
28% of 112 decks -6% synergy
Shipwreck Marsh
27% of 22 decks +22% synergy
Stormcarved Coast
27% of 15 decks +23% synergy
Badlands
26% of 19 decks +23% synergy
Sulfurous Springs
26% of 19 decks +23% synergy
Bayou
26% of 50 decks +23% synergy
Volcanic Island
25% of 16 decks +22% synergy
Polluted Delta
25% of 112 decks +14% synergy
Bloodstained Mire
23% of 112 decks +13% synergy
Deathcap Glade
23% of 39 decks +20% synergy
Wooded Bastion
22% of 45 decks +21% synergy
Canopy Vista
22% of 45 decks +15% synergy
Underground Sea
22% of 23 decks +18% synergy
Underground River
22% of 23 decks +18% synergy
Windswept Heath
21% of 112 decks +11% synergy
Graven Cairns
21% of 19 decks +19% synergy
Silverbluff Bridge
20% of 15 decks +19% synergy