Mikaeus, the Unhallowed + Workhorse + Heartless Summoning

Mikaeus, the Unhallowed
Workhorse
Heartless Summoning

Requires
Mikaeus, the Unhallowed must be on the battlefield. Workhorse must be on the battlefield. Heartless Summoning must be on the battlefield.
Steps
  1. Activate Workhorse by removing a +1/+1 counter from it, adding c.
  2. Repeat step 1 until Workhorse does not have any +1/+1 counters on it.
  3. Workhorse dies as a state-based action due to having zero toughness.
  4. Workhorse's undying ability triggers, returning it from your graveyard to the battlefield with five +1/+1 counters on it.
  5. Repeat.
Results
Infinite colorless mana. Infinite death triggers. Infinite ETB. Infinite LTB.

Mikaeus, the Unhallowed
3.38% of 1214 decks 41 decks
High Synergy Cards (10)
Viscera Seer
76% of 50 decks +71% synergy
Blood Artist
74% of 50 decks +68% synergy
Dark Ritual
76% of 50 decks +65% synergy
Putrid Goblin
64% of 47 decks +64% synergy
Carrion Feeder
62% of 50 decks +59% synergy
Zulaport Cutthroat
64% of 50 decks +59% synergy
Retribution of the Ancients
54% of 50 decks +54% synergy
Puppeteer Clique
54% of 50 decks +53% synergy
Ayara, First of Locthwain
53% of 47 decks +51% synergy
Crypt Ghast
50% of 50 decks +47% synergy
Top Cards (10)
Ashnod's Altar
90% of 50 decks +82% synergy
Triskelion
78% of 50 decks +78% synergy
Phyrexian Altar
72% of 50 decks +68% synergy
Walking Ballista
71% of 48 decks +68% synergy
Solemn Simulacrum
58% of 50 decks +44% synergy
Feed the Swarm
55% of 42 decks +45% synergy
Tatterkite
54% of 50 decks +54% synergy
Gray Merchant of Asphodel
52% of 50 decks +47% synergy
Blasting Station
52% of 50 decks +51% synergy
Corrupted Conviction
50% of 20 decks +47% synergy
Creatures (50)
Cryptic Trilobite
47% of 45 decks +46% synergy
Grim Haruspex
44% of 50 decks +42% synergy
Chainbreaker
42% of 50 decks +42% synergy
Pitiless Plunderer
42% of 48 decks +38% synergy
Lesser Masticore
38% of 47 decks +38% synergy
Yawgmoth, Thran Physician
38% of 47 decks +36% synergy
Bloodthrone Vampire
38% of 50 decks +38% synergy
Pawn of Ulamog
38% of 50 decks +37% synergy
Syr Konrad, the Grim
36% of 47 decks +32% synergy
Spincrusher
36% of 50 decks +36% synergy
Gravecrawler
36% of 50 decks +35% synergy
Plague Belcher
35% of 48 decks +35% synergy
Lingering Tormentor
34% of 50 decks +34% synergy
Wingrattle Scarecrow
34% of 50 decks +34% synergy
Skinrender
34% of 50 decks +34% synergy
Crystalline Crawler
33% of 48 decks +33% synergy
Sidisi, Undead Vizier
30% of 50 decks +29% synergy
Falkenrath Noble
30% of 50 decks +29% synergy
Orcish Bowmasters
29% of 17 decks +23% synergy
Fell Stinger
28% of 40 decks +27% synergy
Braids, Arisen Nightmare
27% of 33 decks +23% synergy
Blood Pet
26% of 50 decks +25% synergy
Fleshbag Marauder
24% of 50 decks +22% synergy
K'rrik, Son of Yawgmoth
23% of 47 decks +22% synergy
Dimir House Guard
22% of 50 decks +22% synergy
Woe Strider
20% of 45 decks +19% synergy
Soulstinger
19% of 48 decks +19% synergy
Leaden Myr
18% of 50 decks +17% synergy
Headless Rider
18% of 40 decks +17% synergy
Drivnod, Carnage Dominus
17% of 23 decks +15% synergy
Baleful Ammit
17% of 48 decks +17% synergy
Grim Poppet
16% of 50 decks +16% synergy
Phyrexian Ghoul
16% of 50 decks +16% synergy
Cinderhaze Wretch
16% of 50 decks +16% synergy
Flesh-Eater Imp
16% of 50 decks +16% synergy
Shriekmaw
16% of 50 decks +15% synergy
Vindictive Lich
15% of 48 decks +14% synergy
Tormod, the Desecrator
14% of 42 decks +14% synergy
Vampire Hexmage
14% of 50 decks +14% synergy
Hex Parasite
14% of 50 decks +14% synergy
Magus of the Coffers
14% of 50 decks +14% synergy
Body Launderer
13% of 39 decks +12% synergy
Junji, the Midnight Sky
13% of 39 decks +11% synergy
Midnight Reaper
13% of 47 decks +11% synergy
Fain, the Broker
12% of 40 decks +12% synergy
Dauthi Voidwalker
12% of 40 decks +8% synergy
Pith Driller
12% of 50 decks +12% synergy
Carnifex Demon
12% of 50 decks +12% synergy
Nantuko Husk
12% of 50 decks +12% synergy
Necrotic Ooze
12% of 50 decks +11% synergy
Instants (35)
Village Rites
45% of 42 decks +40% synergy
Not Dead After All
42% of 12 decks +40% synergy
Defile
36% of 47 decks +34% synergy
Culling the Weak
36% of 50 decks +34% synergy
Deadly Dispute
35% of 40 decks +29% synergy
Tragic Slip
34% of 50 decks +32% synergy
Vampiric Tutor
34% of 50 decks +24% synergy
Infernal Grasp
25% of 40 decks +21% synergy
Sudden Spoiling
20% of 50 decks +19% synergy
Snuff Out
20% of 50 decks +19% synergy
Malakir Rebirth
19% of 42 decks +15% synergy
Undying Malice
18% of 40 decks +16% synergy
Cabal Ritual
16% of 50 decks +14% synergy
Go for the Throat
16% of 50 decks +13% synergy
Entomb
16% of 50 decks +12% synergy
Supernatural Stamina
15% of 48 decks +14% synergy
Baleful Mastery
12% of 40 decks +11% synergy
Plumb the Forbidden
12% of 40 decks +11% synergy
Imp's Mischief
12% of 50 decks +11% synergy
Deadly Rollick
11% of 44 decks +6% synergy
Reckoner's Bargain
10% of 39 decks +9% synergy
Rain of Filth
10% of 50 decks +10% synergy
Altar's Reap
10% of 50 decks +9% synergy
Succumb to Temptation
8% of 48 decks +8% synergy
Wake the Dead
8% of 50 decks +8% synergy
Shred Memory
8% of 50 decks +8% synergy
Withering Boon
8% of 50 decks +8% synergy
Feign Death
8% of 40 decks +6% synergy
Hagra Mauling
7% of 42 decks +6% synergy
Force of Despair
6% of 47 decks +6% synergy
Vendetta
6% of 50 decks +6% synergy
Cremate
6% of 50 decks +6% synergy
Dismember
6% of 50 decks +5% synergy
Murder
6% of 50 decks +4% synergy
Ad Nauseam
6% of 50 decks +4% synergy
Sorceries (39)
Sign in Blood
44% of 50 decks +39% synergy
Demonic Tutor
42% of 50 decks +30% synergy
Bubbling Muck
40% of 50 decks +39% synergy
Diabolic Intent
38% of 50 decks +33% synergy
Diabolic Tutor
36% of 50 decks +33% synergy
Victimize
36% of 50 decks +30% synergy
Toxic Deluge
36% of 50 decks +28% synergy
Persist
30% of 40 decks +29% synergy
Reanimate
28% of 50 decks +20% synergy
Damnation
26% of 50 decks +21% synergy
Night's Whisper
26% of 50 decks +21% synergy
Black Sun's Zenith
24% of 50 decks +23% synergy
Mutilate
24% of 50 decks +23% synergy
Exsanguinate
24% of 50 decks +21% synergy
Read the Bones
24% of 50 decks +20% synergy
Grim Tutor
20% of 50 decks +17% synergy
Beseech the Queen
18% of 50 decks +17% synergy
Dread Return
16% of 50 decks +13% synergy
Living Death
16% of 50 decks +13% synergy
Imperial Seal
16% of 50 decks +13% synergy
Agadeem's Awakening
14% of 42 decks +12% synergy
Unearth
14% of 50 decks +12% synergy
Profane Tutor
12% of 40 decks +11% synergy
Buried Alive
12% of 50 decks +9% synergy
Razaketh's Rite
8% of 48 decks +8% synergy
Torment of Hailfire
8% of 48 decks +6% synergy
Bitter Ordeal
8% of 50 decks +8% synergy
Dimir Machinations
8% of 50 decks +8% synergy
Diabolic Revelation
8% of 50 decks +8% synergy
Increasing Ambition
8% of 50 decks +8% synergy
Duress
8% of 50 decks +7% synergy
Bone Shards
8% of 40 decks +7% synergy
Walk the Plank
6% of 48 decks +6% synergy
Demonic Collusion
6% of 50 decks +6% synergy
Inquisition of Kozilek
6% of 50 decks +6% synergy
Killing Wave
6% of 50 decks +6% synergy
Dark Petition
6% of 50 decks +6% synergy
Decree of Pain
6% of 50 decks +5% synergy
Crux of Fate
6% of 50 decks +5% synergy
Utility Artifacts (24)
Altar of Dementia
48% of 50 decks +45% synergy
Jet Medallion
46% of 50 decks +44% synergy
Skullclamp
42% of 50 decks +29% synergy
Lightning Greaves
38% of 50 decks +13% synergy
Altar of the Brood
28% of 50 decks +27% synergy
Cauldron of Souls
24% of 50 decks +23% synergy
Swiftfoot Boots
24% of 50 decks -4% synergy
Spawning Pit
22% of 50 decks +21% synergy
Bontu's Monument
17% of 48 decks +14% synergy
Bolas's Citadel
15% of 47 decks +10% synergy
The One Ring
14% of 21 decks +5% synergy
Sensei's Divining Top
14% of 50 decks +8% synergy
Nim Deathmantle
12% of 50 decks +11% synergy
Nevinyrral's Disk
12% of 50 decks +11% synergy
Expedition Map
10% of 50 decks +6% synergy
Wishclaw Talisman
9% of 47 decks +6% synergy
Krark-Clan Ironworks
8% of 50 decks +7% synergy
Wayfarer's Bauble
8% of 50 decks -3% synergy
Commander's Plate
7% of 42 decks +5% synergy
Aetherflux Reservoir
6% of 48 decks +2% synergy
Grinding Station
6% of 50 decks +5% synergy
Semblance Anvil
6% of 50 decks +5% synergy
Helm of Awakening
6% of 50 decks +5% synergy
Cloud Key
6% of 50 decks +4% synergy
Enchantments (23)
Phyrexian Arena
44% of 50 decks +37% synergy
Bastion of Remembrance
40% of 43 decks +36% synergy
Necropotence
26% of 50 decks +23% synergy
Black Market Connections
24% of 34 decks +18% synergy
Agent of the Iron Throne
22% of 36 decks +21% synergy
Grave Pact
22% of 50 decks +20% synergy
Greed
18% of 50 decks +17% synergy
Black Market
18% of 50 decks +16% synergy
Contamination
16% of 50 decks +16% synergy
Attrition
16% of 50 decks +16% synergy
Blight Mound
15% of 40 decks +14% synergy
Phyrexian Reclamation
14% of 50 decks +12% synergy
Dark Privilege
12% of 50 decks +12% synergy
Strands of Night
10% of 50 decks +10% synergy
Dictate of Erebos
10% of 50 decks +8% synergy
The Meathook Massacre
10% of 40 decks +7% synergy
Animate Dead
10% of 50 decks +5% synergy
Fallen Ideal
8% of 50 decks +8% synergy
Oubliette
8% of 50 decks +7% synergy
Diabolic Servitude
6% of 50 decks +6% synergy
Underworld Connections
6% of 50 decks +5% synergy
Dance of the Dead
6% of 50 decks +5% synergy
Necromancy
6% of 50 decks +4% synergy
Planeswalkers (1)
Liliana, Dreadhorde General
9% of 47 decks +7% synergy
Utility Lands (32)
Cabal Coffers
60% of 50 decks +54% synergy
Cabal Stronghold
53% of 47 decks +51% synergy
Bojuka Bog
50% of 50 decks +34% synergy
Urborg, Tomb of Yawgmoth
44% of 50 decks +34% synergy
Phyrexian Tower
36% of 50 decks +32% synergy
Nykthos, Shrine to Nyx
36% of 50 decks +30% synergy
Reliquary Tower
36% of 50 decks +7% synergy
Castle Locthwain
32% of 47 decks +29% synergy
Temple of the False God
30% of 50 decks +20% synergy
High Market
26% of 50 decks +22% synergy
Barren Moor
24% of 50 decks +22% synergy
Witch's Cottage
23% of 47 decks +21% synergy
Urza's Saga
20% of 40 decks +13% synergy
Ancient Tomb
20% of 50 decks +9% synergy
War Room
14% of 42 decks +8% synergy
Westvale Abbey
12% of 49 decks +11% synergy
Tomb Fortress
11% of 27 decks +10% synergy
Detection Tower
11% of 47 decks +10% synergy
Inventors' Fair
10% of 48 decks +6% synergy
Takenuma, Abandoned Mire
10% of 39 decks +4% synergy
Lake of the Dead
10% of 50 decks +10% synergy
Polluted Mire
10% of 50 decks +9% synergy
Crypt of Agadeem
10% of 50 decks +9% synergy
Thespian's Stage
10% of 50 decks +7% synergy
Rogue's Passage
10% of 50 decks -9% synergy
Ebon Stronghold
8% of 50 decks +8% synergy
Nesting Grounds
7% of 44 decks +6% synergy
Volrath's Stronghold
6% of 50 decks +5% synergy
Crystal Vein
6% of 50 decks +5% synergy
Vault of Whispers
6% of 50 decks +4% synergy
Ghost Quarter
6% of 50 decks +3% synergy
Strip Mine
6% of 50 decks +3% synergy
Mana Artifacts (25)
Sol Ring
88% of 50 decks +4% synergy
Arcane Signet
57% of 47 decks -14% synergy
Mind Stone
38% of 50 decks +20% synergy
Thought Vessel
24% of 49 decks +9% synergy
Mana Crypt
22% of 50 decks +11% synergy
Jeweled Lotus
19% of 42 decks +11% synergy
Charcoal Diamond
18% of 50 decks +15% synergy
Thran Dynamo
14% of 50 decks +9% synergy
Mana Vault
14% of 50 decks +7% synergy
Fellwar Stone
14% of 50 decks -7% synergy
Relic of Legends
13% of 30 decks +11% synergy
Commander's Sphere
12% of 50 decks -4% synergy
Nyx Lotus
11% of 45 decks +9% synergy
Crowded Crypt
10% of 40 decks +9% synergy
Worn Powerstone
8% of 50 decks +5% synergy
Chrome Mox
8% of 50 decks +1% synergy
Lotus Petal
8% of 50 decks +1% synergy
Liquimetal Torque
8% of 40 decks +3% synergy
Guardian Idol
6% of 50 decks +6% synergy
Coldsteel Heart
6% of 50 decks +5% synergy
Prismatic Lens
6% of 50 decks +4% synergy
Caged Sun
6% of 50 decks +4% synergy
Hedron Archive
6% of 50 decks +3% synergy
Mox Opal
6% of 50 decks +2% synergy
Everflowing Chalice
6% of 50 decks +1% synergy
Lands (5)
Myriad Landscape
30% of 50 decks +9% synergy
Cavern of Souls
20% of 50 decks +14% synergy
Command Tower
12% of 50 decks -61% synergy
Path of Ancestry
6% of 48 decks -14% synergy
Verdant Catacombs
6% of 50 decks -6% synergy