Workhorse + Mikaeus, the Unhallowed + Phyrexian Altar

Workhorse
Mikaeus, the Unhallowed
Phyrexian Altar

Requires
Workhorse must be on the battlefield. Mikaeus, the Unhallowed must be on the battlefield. Phyrexian Altar must be on the battlefield.
Steps
  1. Activate Workhorse by removing all +1/+1 counters, adding that many c.
  2. Activate Phyrexian Altar by sacrificing Workhorse, adding one mana of any color.
  3. Workhorse undying ability triggers, returning it to the battlefield with an additional +1/+1 counter on it.
  4. Repeat.
Results
Infinite colored mana. Infinite colorless mana. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Mikaeus, the Unhallowed
7.83% of 1214 decks 95 decks
Grenzo, Dungeon Warden
0.52% of 3291 decks 17 decks
High Synergy Cards (10)
Viscera Seer
74% of 159 decks +68% synergy
Blood Artist
67% of 159 decks +61% synergy
Dark Ritual
67% of 159 decks +56% synergy
Eternal Witness
67% of 12 decks +56% synergy
Eladamri's Call
57% of 7 decks +54% synergy
Putrid Goblin
54% of 156 decks +54% synergy
Murderous Redcap
54% of 28 decks +53% synergy
Zulaport Cutthroat
58% of 159 decks +52% synergy
Assassin's Trophy
58% of 12 decks +52% synergy
Carrion Feeder
55% of 159 decks +52% synergy
Top Cards (10)
Ashnod's Altar
94% of 159 decks +86% synergy
Triskelion
73% of 159 decks +72% synergy
Walking Ballista
64% of 157 decks +61% synergy
Altar of Dementia
60% of 159 decks +57% synergy
Dockside Extortionist
57% of 28 decks +49% synergy
Rhystic Study
56% of 16 decks +42% synergy
Counterspell
56% of 16 decks +35% synergy
Enlightened Tutor
56% of 9 decks +47% synergy
Puppeteer Clique
52% of 159 decks +51% synergy
Blasting Station
51% of 159 decks +50% synergy
Creatures (50)
Gray Merchant of Asphodel
49% of 159 decks +44% synergy
Pitiless Plunderer
48% of 156 decks +44% synergy
Kiki-Jiki, Mirror Breaker
46% of 28 decks +45% synergy
Tatterkite
45% of 159 decks +45% synergy
Crypt Ghast
45% of 159 decks +43% synergy
Solemn Simulacrum
44% of 159 decks +30% synergy
Gravecrawler
43% of 159 decks +42% synergy
Good-Fortune Unicorn
43% of 7 decks +42% synergy
Goblin Engineer
43% of 28 decks +41% synergy
Faeburrow Elder
43% of 7 decks +40% synergy
Orcish Bowmasters
41% of 49 decks +34% synergy
Pawn of Ulamog
40% of 159 decks +38% synergy
River Kelpie
38% of 16 decks +37% synergy
Ayara, First of Locthwain
37% of 156 decks +35% synergy
Cryptic Trilobite
37% of 154 decks +37% synergy
Grim Haruspex
36% of 159 decks +33% synergy
Zealous Conscripts
36% of 28 decks +35% synergy
Satyr Wayfinder
33% of 12 decks +32% synergy
Reveillark
33% of 9 decks +32% synergy
Karmic Guide
33% of 9 decks +31% synergy
Birds of Paradise
33% of 12 decks +21% synergy
Priest of Urabrask
32% of 28 decks +32% synergy
Iron Myr
32% of 28 decks +31% synergy
Lingering Tormentor
32% of 159 decks +32% synergy
Glen Elendra Archmage
31% of 16 decks +30% synergy
Baleful Strix
31% of 16 decks +28% synergy
Sidisi, Undead Vizier
30% of 159 decks +29% synergy
Lesser Masticore
30% of 156 decks +30% synergy
Yawgmoth, Thran Physician
30% of 156 decks +28% synergy
Plague Belcher
29% of 156 decks +28% synergy
Flayer of the Hatebound
29% of 28 decks +28% synergy
Judith, the Scourge Diva
29% of 28 decks +28% synergy
Goblin Welder
29% of 28 decks +27% synergy
Imperial Recruiter
29% of 28 decks +25% synergy
Chainbreaker
28% of 159 decks +28% synergy
Syr Konrad, the Grim
28% of 156 decks +23% synergy
Mahadi, Emporium Master
27% of 22 decks +26% synergy
Hoverstone Pilgrim
26% of 19 decks +26% synergy
Wingrattle Scarecrow
26% of 159 decks +26% synergy
Spike Feeder
25% of 12 decks +25% synergy
Sage of Fables
25% of 16 decks +25% synergy
Utopia Mycon
25% of 12 decks +25% synergy
Hermit Druid
25% of 12 decks +24% synergy
Golgari Grave-Troll
25% of 12 decks +24% synergy
Protean Hulk
25% of 12 decks +24% synergy
Siege-Gang Commander
25% of 28 decks +24% synergy
Corpsejack Menace
25% of 12 decks +24% synergy
Spore Frog
25% of 12 decks +24% synergy
Elves of Deep Shadow
25% of 12 decks +22% synergy
Llanowar Elves
25% of 12 decks +15% synergy
Instants (50)
Vampiric Tutor
51% of 159 decks +41% synergy
Cyclonic Rift
50% of 16 decks +36% synergy
Valakut Awakening
46% of 26 decks +43% synergy
Swords to Plowshares
44% of 9 decks +16% synergy
Mana Drain
38% of 16 decks +30% synergy
Fierce Guardianship
36% of 14 decks +27% synergy
Culling the Weak
35% of 159 decks +33% synergy
Village Rites
34% of 148 decks +28% synergy
Swan Song
31% of 16 decks +23% synergy
Brainstorm
31% of 16 decks +20% synergy
Chaos Warp
29% of 28 decks +13% synergy
Fire Prophecy
27% of 26 decks +27% synergy
Bitter Triumph
26% of 19 decks +23% synergy
Defile
26% of 156 decks +24% synergy
Disallow
25% of 16 decks +24% synergy
Abrupt Decay
25% of 12 decks +23% synergy
Putrefy
25% of 12 decks +22% synergy
Negate
25% of 16 decks +14% synergy
Cabal Ritual
24% of 159 decks +21% synergy
Tragic Slip
23% of 159 decks +21% synergy
Corrupted Conviction
22% of 59 decks +19% synergy
Entomb
22% of 159 decks +18% synergy
Not Dead After All
21% of 29 decks +19% synergy
Force of Negation
20% of 15 decks +15% synergy
Stifle
19% of 16 decks +18% synergy
Deadly Dispute
18% of 143 decks +13% synergy
Pyroblast
18% of 28 decks +15% synergy
Malakir Rebirth
17% of 147 decks +12% synergy
Deadly Rollick
17% of 151 decks +11% synergy
Infernal Grasp
16% of 141 decks +11% synergy
Red Elemental Blast
14% of 28 decks +11% synergy
Bedevil
14% of 28 decks +11% synergy
Imp's Mischief
13% of 159 decks +12% synergy
Go for the Throat
13% of 159 decks +10% synergy
Deflecting Swat
12% of 26 decks +4% synergy
Sudden Spoiling
11% of 159 decks +10% synergy
Ad Nauseam
11% of 159 decks +10% synergy
Terminate
11% of 28 decks +6% synergy
Snuff Out
11% of 159 decks +10% synergy
Baleful Mastery
8% of 144 decks +6% synergy
Dismember
8% of 159 decks +6% synergy
Altar's Reap
7% of 159 decks +6% synergy
Hero's Downfall
7% of 159 decks +6% synergy
Force of Despair
6% of 156 decks +6% synergy
Malicious Affliction
6% of 159 decks +6% synergy
Withering Boon
6% of 159 decks +5% synergy
Rise of the Dread Marn
6% of 145 decks +5% synergy
Saw in Half
5% of 132 decks +4% synergy
Undying Malice
5% of 134 decks +4% synergy
Doom Blade
5% of 159 decks +4% synergy
Sorceries (42)
Demonic Tutor
60% of 159 decks +48% synergy
Feed the Swarm
50% of 147 decks +41% synergy
Eerie Ultimatum
43% of 7 decks +41% synergy
Life from the Loam
42% of 12 decks +40% synergy
Reanimate
42% of 159 decks +34% synergy
Diabolic Intent
41% of 159 decks +36% synergy
Blasphemous Act
36% of 28 decks +19% synergy
Toxic Deluge
32% of 159 decks +24% synergy
Grim Tutor
31% of 159 decks +29% synergy
Damnation
31% of 159 decks +27% synergy
Sign in Blood
30% of 159 decks +25% synergy
Diabolic Tutor
28% of 159 decks +25% synergy
Beseech the Mirror
25% of 36 decks +22% synergy
Green Sun's Zenith
25% of 12 decks +22% synergy
Three Visits
25% of 12 decks +13% synergy
Nature's Lore
25% of 12 decks +10% synergy
Exsanguinate
25% of 159 decks +22% synergy
Victimize
22% of 159 decks +16% synergy
Imperial Seal
21% of 159 decks +18% synergy
Bubbling Muck
20% of 159 decks +19% synergy
Fabricate
19% of 16 decks +16% synergy
Buried Alive
18% of 159 decks +16% synergy
Torment of Hailfire
17% of 156 decks +15% synergy
Night's Whisper
16% of 159 decks +12% synergy
Beseech the Queen
16% of 159 decks +15% synergy
Jeska's Will
15% of 26 decks +7% synergy
Mutilate
15% of 159 decks +14% synergy
Persist
15% of 144 decks +13% synergy
Living Death
14% of 159 decks +12% synergy
Gamble
14% of 28 decks +9% synergy
Vandalblast
14% of 28 decks +6% synergy
Faithless Looting
14% of 28 decks +6% synergy
Dread Return
14% of 159 decks +11% synergy
Read the Bones
13% of 159 decks +8% synergy
Profane Tutor
12% of 144 decks +11% synergy
Agadeem's Awakening
12% of 147 decks +10% synergy
Unearth
9% of 159 decks +8% synergy
Black Sun's Zenith
9% of 159 decks +8% synergy
Unmarked Grave
8% of 144 decks +6% synergy
Cruel Tutor
6% of 159 decks +6% synergy
Army of the Damned
6% of 159 decks +4% synergy
Beacon of Unrest
5% of 159 decks +4% synergy
Utility Artifacts (31)
Skullclamp
45% of 159 decks +32% synergy
Lightning Greaves
38% of 159 decks +13% synergy
Jet Medallion
38% of 159 decks +36% synergy
Altar of the Brood
31% of 159 decks +29% synergy
Bolas's Citadel
29% of 156 decks +24% synergy
Birthing Pod
25% of 12 decks +24% synergy
The One Ring
22% of 60 decks +13% synergy
Swiftfoot Boots
21% of 159 decks -7% synergy
Sensei's Divining Top
20% of 159 decks +14% synergy
Cauldron of Souls
19% of 159 decks +18% synergy
Nim Deathmantle
18% of 159 decks +17% synergy
Bontu's Monument
17% of 156 decks +15% synergy
Krark-Clan Ironworks
14% of 159 decks +13% synergy
Desecrated Tomb
13% of 156 decks +13% synergy
Aetherflux Reservoir
12% of 157 decks +8% synergy
Expedition Map
11% of 159 decks +7% synergy
Wishclaw Talisman
10% of 156 decks +7% synergy
Wayfarer's Bauble
9% of 159 decks -2% synergy
Heartstone
9% of 159 decks +8% synergy
Spawning Pit
8% of 159 decks +8% synergy
The Cauldron of Eternity
8% of 156 decks +7% synergy
The Golden Throne
8% of 80 decks +7% synergy
Grinding Station
7% of 159 decks +6% synergy
The Ozolith
7% of 152 decks +3% synergy
Moonsilver Key
6% of 141 decks +5% synergy
Tel-Jilad Stylus
6% of 159 decks +6% synergy
Rings of Brighthearth
6% of 159 decks +4% synergy
Reito Lantern
6% of 159 decks +6% synergy
Mesmeric Orb
6% of 159 decks +4% synergy
Mystic Forge
5% of 156 decks +2% synergy
Staff of Domination
5% of 159 decks +3% synergy
Enchantments (44)
Aura Shards
43% of 7 decks +41% synergy
Survival of the Fittest
42% of 12 decks +41% synergy
Doubling Season
42% of 12 decks +38% synergy
Goblin Bombardment
39% of 28 decks +36% synergy
Smothering Tithe
38% of 8 decks +26% synergy
Retribution of the Ancients
37% of 159 decks +37% synergy
Branching Evolution
36% of 11 decks +34% synergy
Defense of the Heart
33% of 12 decks +32% synergy
Hardened Scales
33% of 12 decks +29% synergy
Phyrexian Arena
33% of 159 decks +25% synergy
Grave Pact
32% of 159 decks +30% synergy
Mystic Remora
31% of 16 decks +22% synergy
Bastion of Remembrance
29% of 150 decks +25% synergy
Necropotence
25% of 159 decks +22% synergy
Earthcraft
25% of 12 decks +25% synergy
Primal Vigor
25% of 12 decks +24% synergy
Greater Good
25% of 12 decks +23% synergy
Impact Tremors
25% of 28 decks +21% synergy
Sylvan Library
25% of 12 decks +19% synergy
Black Market Connections
24% of 111 decks +19% synergy
The Meathook Massacre
23% of 141 decks +21% synergy
Heartless Summoning
23% of 159 decks +22% synergy
Black Market
23% of 159 decks +20% synergy
Dictate of Erebos
19% of 159 decks +17% synergy
Rooftop Storm
19% of 16 decks +18% synergy
Inexorable Tide
19% of 16 decks +17% synergy
Animate Dead
16% of 159 decks +11% synergy
Agent of the Iron Throne
16% of 116 decks +14% synergy
Braid of Fire
14% of 28 decks +14% synergy
Phyrexian Reclamation
14% of 159 decks +12% synergy
Mindmoil
11% of 28 decks +11% synergy
Sneak Attack
11% of 28 decks +9% synergy
Contamination
11% of 159 decks +10% synergy
Virtue of Persistence
10% of 29 decks +8% synergy
Exquisite Blood
10% of 159 decks +8% synergy
Bitterblossom
8% of 159 decks +6% synergy
Thran Vigil
8% of 76 decks +8% synergy
Necromancy
8% of 159 decks +6% synergy
Attrition
7% of 159 decks +6% synergy
Sanguine Bond
7% of 159 decks +4% synergy
Greed
6% of 159 decks +5% synergy
Tortured Existence
6% of 159 decks +5% synergy
Unspeakable Symbol
5% of 159 decks +5% synergy
Dance of the Dead
5% of 159 decks +4% synergy
Planeswalkers (2)
Liliana, Dreadhorde General
10% of 156 decks +8% synergy
Liliana of the Dark Realms
7% of 159 decks +6% synergy
Utility Lands (35)
Cabal Coffers
67% of 159 decks +61% synergy
Urborg, Tomb of Yawgmoth
56% of 159 decks +46% synergy
Bojuka Bog
45% of 159 decks +29% synergy
Cabal Stronghold
43% of 156 decks +41% synergy
Phyrexian Tower
42% of 159 decks +37% synergy
Reliquary Tower
31% of 159 decks +3% synergy
Nykthos, Shrine to Nyx
30% of 159 decks +24% synergy
Gaea's Cradle
25% of 12 decks +22% synergy
Ancient Tomb
24% of 159 decks +13% synergy
Castle Locthwain
22% of 156 decks +19% synergy
Takenuma, Abandoned Mire
19% of 131 decks +13% synergy
Urza's Saga
18% of 143 decks +11% synergy
Great Furnace
18% of 28 decks +15% synergy
High Market
15% of 159 decks +12% synergy
Witch's Cottage
13% of 156 decks +11% synergy
Inventors' Fair
13% of 157 decks +9% synergy
Temple of the False God
13% of 159 decks +3% synergy
Volrath's Stronghold
12% of 159 decks +11% synergy
Buried Ruin
10% of 159 decks +5% synergy
Crypt of Agadeem
9% of 159 decks +9% synergy
Thespian's Stage
9% of 159 decks +7% synergy
Vault of Whispers
9% of 159 decks +7% synergy
Strip Mine
9% of 159 decks +6% synergy
Lake of the Dead
8% of 159 decks +8% synergy
Barren Moor
8% of 159 decks +6% synergy
Westvale Abbey
8% of 158 decks +6% synergy
Command Beacon
8% of 158 decks +3% synergy
Crystal Vein
7% of 159 decks +6% synergy
Rogue's Passage
7% of 159 decks -12% synergy
Vesuva
6% of 159 decks +5% synergy
War Room
6% of 147 decks -0% synergy
Tomb Fortress
6% of 88 decks +5% synergy
Mortuary Mire
6% of 159 decks +3% synergy
Maze of Ith
6% of 159 decks +3% synergy
Deserted Temple
5% of 159 decks +5% synergy
Mana Artifacts (28)
Sol Ring
92% of 159 decks +7% synergy
Arcane Signet
62% of 156 decks -9% synergy
Dimir Signet
44% of 16 decks +36% synergy
Rakdos Signet
43% of 28 decks +36% synergy
Mana Crypt
32% of 159 decks +21% synergy
Jeweled Lotus
25% of 147 decks +18% synergy
Talisman of Indulgence
25% of 28 decks +19% synergy
Talisman of Dominance
25% of 16 decks +17% synergy
Mind Stone
25% of 159 decks +6% synergy
Sceptre of Eternal Glory
22% of 88 decks +20% synergy
Mana Vault
21% of 159 decks +15% synergy
Throne of Eldraine
21% of 24 decks +18% synergy
Thought Vessel
18% of 158 decks +2% synergy
Chrome Mox
14% of 159 decks +8% synergy
Fellwar Stone
14% of 159 decks -6% synergy
Lotus Petal
13% of 159 decks +6% synergy
Caged Sun
12% of 159 decks +9% synergy
Thran Dynamo
11% of 159 decks +7% synergy
Basalt Monolith
11% of 159 decks +8% synergy
Charcoal Diamond
11% of 159 decks +8% synergy
Nyx Lotus
10% of 156 decks +9% synergy
Crowded Crypt
9% of 141 decks +8% synergy
Mox Opal
8% of 159 decks +4% synergy
Grim Monolith
7% of 159 decks +5% synergy
Gilded Lotus
7% of 159 decks +3% synergy
Commander's Sphere
7% of 159 decks -9% synergy
Extraplanar Lens
5% of 159 decks +4% synergy
Everflowing Chalice
5% of 159 decks +0% synergy
Lands (50)
Zagoth Triome
100% of 3 decks +96% synergy
Yavimaya Coast
100% of 3 decks +94% synergy
Breeding Pool
100% of 3 decks +91% synergy
Overgrown Tomb
92% of 12 decks +82% synergy
Blood Crypt
89% of 28 decks +80% synergy
Godless Shrine
89% of 9 decks +79% synergy
Temple Garden
86% of 7 decks +77% synergy
Watery Grave
81% of 16 decks +71% synergy
Vault of Champions
67% of 6 decks +61% synergy
Steam Vents
62% of 8 decks +53% synergy
Dragonskull Summit
57% of 28 decks +50% synergy
Savannah
57% of 7 decks +54% synergy
Indatha Triome
57% of 7 decks +54% synergy
Xander's Lounge
57% of 7 decks +54% synergy
Scrubland
56% of 9 decks +52% synergy
Bayou
50% of 12 decks +47% synergy
Shivan Reef
50% of 8 decks +44% synergy
Luxury Suite
50% of 28 decks +44% synergy
Blightstep Pathway
46% of 26 decks +44% synergy
Graven Cairns
43% of 28 decks +41% synergy
Temple of Malice
43% of 28 decks +40% synergy
Sulfurous Springs
43% of 28 decks +39% synergy
Bountiful Promenade
43% of 7 decks +38% synergy
Undergrowth Stadium
40% of 10 decks +34% synergy
Morphic Pool
40% of 15 decks +33% synergy
Smoldering Marsh
39% of 28 decks +32% synergy
Volcanic Island
38% of 8 decks +34% synergy
Crumbling Necropolis
38% of 8 decks +34% synergy
Sulfur Falls
38% of 8 decks +31% synergy
Haunted Ridge
36% of 25 decks +32% synergy
Woodland Cemetery
33% of 12 decks +28% synergy
Underground Sea
31% of 16 decks +28% synergy
Command Tower
30% of 159 decks -43% synergy
Badlands
29% of 28 decks +25% synergy
Rakdos Carnarium
29% of 28 decks +25% synergy
Shipwreck Marsh
29% of 14 decks +24% synergy
Canyon Slough
25% of 28 decks +24% synergy
Nurturing Peatland
25% of 12 decks +24% synergy
Llanowar Wastes
25% of 12 decks +20% synergy
Drowned Catacomb
25% of 16 decks +19% synergy
Blackcleave Cliffs
21% of 28 decks +20% synergy
Geothermal Bog
19% of 21 decks +18% synergy
Temple of Deceit
19% of 16 decks +15% synergy
Dimir Aqueduct
19% of 16 decks +14% synergy
Underground River
19% of 16 decks +14% synergy
Sunken Hollow
19% of 16 decks +10% synergy
Tainted Peak
18% of 28 decks +16% synergy
Foreboding Ruins
18% of 28 decks +14% synergy
Cavern of Souls
16% of 159 decks +9% synergy
Myriad Landscape
16% of 159 decks -5% synergy