Workhorse + Mikaeus, the Unhallowed + Ashnod's Altar

Workhorse
Mikaeus, the Unhallowed
Ashnod's Altar

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

Mikaeus, the Unhallowed
10.17% of 1337 decks 136 decks
Grenzo, Dungeon Warden
1.38% of 3267 decks 45 decks
Marchesa, the Black Rose
0.12% of 9321 decks 11 decks
Imotekh the Stormlord
0.12% of 6538 decks 8 decks
Meren of Clan Nel Toth
0.03% of 14905 decks 4 decks
Xantcha, Sleeper Agent
0.10% of 3040 decks 3 decks
Ghave, Guru of Spores
0.05% of 6423 decks 3 decks
Bane, Lord of Darkness
0.10% of 2087 decks 2 decks
Yawgmoth, Thran Physician
0.04% of 5567 decks 2 decks
Sidisi, Undead Vizier
0.37% of 546 decks 2 decks
Acererak the Archlich
0.18% of 1084 decks 2 decks
Burakos, Party Leader // Haunted One
0.16% of 637 decks 1 decks
Dina, Soul Steeper
0.01% of 7676 decks 1 decks
Maga, Traitor to Mortals
0.50% of 200 decks 1 decks
Maralen of the Mornsong
0.06% of 1590 decks 1 decks
Gev, Scaled Scorch
0.02% of 4293 decks 1 decks
Gilanra, Caller of Wirewood // Vial Smasher the Fierce
0.21% of 484 decks 1 decks
Toxrill, the Corrosive
0.02% of 5541 decks 1 decks
New Cards
Persistent Constrictor
60% of 5 decks +51% synergy
Withering Torment
44% of 9 decks +23% synergy
Funeral Room // Awakening Hall
27% of 11 decks +21% synergy
High Synergy Cards
Triskelion
73% of 241 decks +73% synergy
Viscera Seer
76% of 241 decks +66% synergy
Murderous Redcap
65% of 65 decks +63% synergy
Phyrexian Altar
62% of 241 decks +58% synergy
Kiki-Jiki, Mirror Breaker
58% of 65 decks +55% synergy
Blood Artist
64% of 239 decks +53% synergy
Putrid Goblin
53% of 231 decks +53% synergy
Walking Ballista
54% of 236 decks +51% synergy
Carrion Feeder
56% of 241 decks +50% synergy
Puppeteer Clique
50% of 241 decks +48% synergy
Top Cards
Dark Ritual
61% of 241 decks +39% synergy
Enlightened Tutor
57% of 7 decks +39% synergy
Zulaport Cutthroat
56% of 238 decks +46% synergy
Gray Merchant of Asphodel
53% of 239 decks +44% synergy
Warren Soultrader
51% of 45 decks +44% synergy
Baleful Strix
50% of 16 decks +37% synergy
Eternal Witness
50% of 14 decks +29% synergy
Pitiless Plunderer
47% of 236 decks +39% synergy
Altar of Dementia
46% of 241 decks +44% synergy
Zealous Conscripts
46% of 65 decks +44% synergy
Creatures
Good-Fortune Unicorn
60% of 5 decks +57% synergy
Elas il-Kor, Sadistic Pilgrim
60% of 5 decks +48% synergy
Solemn Simulacrum
46% of 241 decks +32% synergy
Glen Elendra Archmage
44% of 16 decks +41% synergy
Dockside Extortionist
44% of 62 decks +31% synergy
Priest of Urabrask
43% of 65 decks +43% synergy
Danny Pink
43% of 7 decks +41% synergy
Reveillark
43% of 7 decks +41% synergy
Karmic Guide
43% of 7 decks +38% synergy
Tatterkite
42% of 241 decks +42% synergy
Crypt Ghast
41% of 239 decks +36% synergy
Goblin Engineer
40% of 62 decks +37% synergy
Gravecrawler
38% of 240 decks +36% synergy
Pawn of Ulamog
38% of 241 decks +36% synergy
River Kelpie
38% of 16 decks +37% synergy
Imperial Recruiter
37% of 65 decks +31% synergy
Skittering Precursor
36% of 11 decks +36% synergy
Sakura-Tribe Elder
36% of 14 decks +17% synergy
Ayara, First of Locthwain
36% of 230 decks +32% synergy
Siege-Gang Commander
35% of 65 decks +33% synergy
Goblin Welder
34% of 65 decks +31% synergy
Iron Myr
34% of 65 decks +31% synergy
Cryptic Trilobite
33% of 225 decks +33% synergy
Mulldrifter
31% of 16 decks +25% synergy
Yawgmoth, Thran Physician
30% of 231 decks +27% synergy
Accursed Marauder
30% of 33 decks +21% synergy
Chainbreaker
30% of 241 decks +30% synergy
Grim Haruspex
30% of 239 decks +26% synergy
Skirk Prospector
29% of 65 decks +26% synergy
Lesser Masticore
29% of 231 decks +29% synergy
Marionette Apprentice
29% of 45 decks +21% synergy
Lingering Tormentor
29% of 241 decks +29% synergy
Utopia Mycon
29% of 14 decks +28% synergy
Acidic Slime
29% of 14 decks +25% synergy
Corpsejack Menace
29% of 14 decks +23% synergy
Orcish Bowmasters
28% of 125 decks +17% synergy
Flayer of the Hatebound
28% of 65 decks +27% synergy
Pinnacle Monk
27% of 11 decks +20% synergy
Plague Belcher
27% of 236 decks +26% synergy
Goblin Matron
26% of 65 decks +24% synergy
Syr Konrad, the Grim
26% of 230 decks +17% synergy
Sage of Fables
25% of 16 decks +25% synergy
Chatterfang, Squirrel General
25% of 12 decks +20% synergy
Spark Double
25% of 16 decks +18% synergy
Wingrattle Scarecrow
25% of 241 decks +25% synergy
Sidisi, Undead Vizier
24% of 238 decks +22% synergy
Hoverstone Pilgrim
23% of 77 decks +23% synergy
Crystalline Crawler
23% of 236 decks +23% synergy
Falkenrath Noble
22% of 241 decks +20% synergy
Fleshbag Marauder
22% of 241 decks +18% synergy
Instants
Eladamri's Call
60% of 5 decks +49% synergy
Valakut Awakening
46% of 59 decks +39% synergy
Swords to Plowshares
43% of 7 decks -20% synergy
Vampiric Tutor
39% of 241 decks +20% synergy
Chaos Warp
34% of 65 decks +2% synergy
Village Rites
31% of 223 decks +21% synergy
Mana Drain
31% of 16 decks +16% synergy
Cyclonic Rift
31% of 16 decks +3% synergy
Counterspell
31% of 16 decks -12% synergy
Abrupt Decay
29% of 14 decks +18% synergy
Worldly Tutor
29% of 14 decks +14% synergy
Assassin's Trophy
29% of 14 decks -2% synergy
Fierce Guardianship
27% of 15 decks +9% synergy
Terminate
26% of 65 decks +5% synergy
Brainstorm
25% of 16 decks +4% synergy
Culling the Weak
24% of 241 decks +21% synergy
Defile
24% of 231 decks +20% synergy
Tragic Slip
23% of 240 decks +19% synergy
Deadly Dispute
22% of 217 decks +11% synergy
Krosan Grip
21% of 14 decks +14% synergy
Putrefy
21% of 14 decks +5% synergy
Cabal Ritual
21% of 241 decks +16% synergy
Corrupted Conviction
20% of 137 decks +15% synergy
Fire Prophecy
20% of 60 decks +20% synergy
Entomb
19% of 241 decks +12% synergy
Disallow
19% of 16 decks +17% synergy
Fell the Profane
18% of 45 decks +6% synergy
Deflecting Swat
17% of 60 decks +0% synergy
Deadly Rollick
14% of 225 decks +3% synergy
Rakdos Charm
14% of 65 decks -0% synergy
Infernal Grasp
13% of 215 decks +6% synergy
Malakir Rebirth
13% of 221 decks +5% synergy
Not Dead After All
13% of 101 decks +9% synergy
Bedevil
13% of 63 decks -2% synergy
Pyroblast
12% of 65 decks +6% synergy
Red Elemental Blast
12% of 65 decks +6% synergy
Imp's Mischief
12% of 241 decks +9% synergy
Flare of Malice
11% of 46 decks +8% synergy
First Day of Class
11% of 57 decks +10% synergy
Tibalt's Trickery
11% of 57 decks +5% synergy
Go for the Throat
10% of 241 decks +3% synergy
Sudden Spoiling
10% of 241 decks +8% synergy
Bitter Triumph
9% of 69 decks +4% synergy
Volcanic Spite
8% of 36 decks +8% synergy
Snuff Out
8% of 241 decks +6% synergy
Baleful Mastery
7% of 218 decks +4% synergy
Saw in Half
7% of 174 decks +4% synergy
Doom Blade
6% of 241 decks +4% synergy
Desperate Ritual
6% of 65 decks +4% synergy
Fire Covenant
6% of 65 decks +3% synergy
Sorceries
Demonic Tutor
46% of 241 decks +24% synergy
Feed the Swarm
43% of 221 decks +25% synergy
Diabolic Intent
37% of 241 decks +29% synergy
Reanimate
30% of 241 decks +15% synergy
Blasphemous Act
29% of 65 decks -4% synergy
Diabolic Tutor
29% of 241 decks +23% synergy
Sign in Blood
29% of 241 decks +19% synergy
Three Visits
29% of 14 decks +4% synergy
Nature's Lore
29% of 14 decks -3% synergy
Toxic Deluge
26% of 239 decks +9% synergy
Victimize
25% of 241 decks +13% synergy
Insatiable Avarice
23% of 56 decks +18% synergy
Into the Fire
22% of 36 decks +21% synergy
Damnation
22% of 241 decks +14% synergy
Green Sun's Zenith
21% of 14 decks +15% synergy
Gamble
20% of 65 decks +10% synergy
Exsanguinate
20% of 241 decks +14% synergy
Grim Tutor
18% of 241 decks +13% synergy
Jeska's Will
17% of 58 decks -0% synergy
Vandalblast
17% of 65 decks +1% synergy
Read the Bones
17% of 239 decks +9% synergy
Bubbling Muck
17% of 241 decks +15% synergy
Dread Return
16% of 241 decks +11% synergy
Night's Whisper
16% of 241 decks +7% synergy
Living Death
15% of 241 decks +10% synergy
Imperial Seal
15% of 241 decks +9% synergy
Mutilate
13% of 241 decks +11% synergy
Torment of Hailfire
12% of 236 decks +7% synergy
Beseech the Queen
12% of 241 decks +11% synergy
Buried Alive
11% of 241 decks +6% synergy
Persist
11% of 217 decks +9% synergy
Faithless Looting
11% of 65 decks -6% synergy
Beseech the Mirror
10% of 107 decks +6% synergy
Profane Tutor
10% of 217 decks +7% synergy
Unearth
9% of 241 decks +6% synergy
Black Sun's Zenith
9% of 241 decks +7% synergy
Agadeem's Awakening
9% of 221 decks +5% synergy
Twinflame
8% of 65 decks +5% synergy
Mana Geyser
8% of 65 decks +1% synergy
Sinister Waltz
7% of 54 decks +7% synergy
Doomsday
7% of 241 decks +6% synergy
Past in Flames
6% of 65 decks +3% synergy
Wheel of Fortune
6% of 65 decks +1% synergy
Decree of Pain
5% of 241 decks +3% synergy
Bone Shards
5% of 217 decks +4% synergy
Unmarked Grave
5% of 217 decks +2% synergy
Utility Artifacts
Skullclamp
44% of 241 decks +32% synergy
Blasting Station
37% of 241 decks +37% synergy
Lightning Greaves
34% of 241 decks +8% synergy
Jet Medallion
30% of 241 decks +27% synergy
Birthing Pod
29% of 14 decks +26% synergy
Bolas's Citadel
24% of 232 decks +15% synergy
Altar of the Brood
21% of 239 decks +20% synergy
Cauldron of Souls
21% of 241 decks +20% synergy
Swiftfoot Boots
18% of 241 decks -10% synergy
Sensei's Divining Top
16% of 241 decks +11% synergy
Heartstone
16% of 241 decks +15% synergy
Bontu's Monument
15% of 236 decks +13% synergy
Nim Deathmantle
15% of 241 decks +14% synergy
Wayfarer's Bauble
14% of 241 decks +3% synergy
The One Ring
13% of 138 decks +4% synergy
The Cauldron of Eternity
13% of 230 decks +12% synergy
Desecrated Tomb
12% of 235 decks +12% synergy
Expedition Map
11% of 241 decks +8% synergy
Tel-Jilad Stylus
10% of 241 decks +10% synergy
Krark-Clan Ironworks
10% of 241 decks +8% synergy
Spawning Pit
9% of 241 decks +9% synergy
Aetherflux Reservoir
8% of 236 decks +5% synergy
Agatha's Soul Cauldron
8% of 107 decks +7% synergy
Teferi's Puzzle Box
8% of 241 decks +7% synergy
Wishclaw Talisman
7% of 230 decks +2% synergy
Reito Lantern
7% of 241 decks +7% synergy
The Ozolith
6% of 224 decks +3% synergy
Moonsilver Key
6% of 215 decks +5% synergy
Crystal Ball
5% of 241 decks +5% synergy
Palantír of Orthanc
5% of 115 decks +4% synergy
Enchantments
Aura Shards
60% of 5 decks +51% synergy
Rhystic Study
44% of 16 decks +16% synergy
Doubling Season
43% of 14 decks +34% synergy
Anointed Procession
43% of 7 decks +34% synergy
Retribution of the Ancients
38% of 239 decks +38% synergy
Goblin Bombardment
37% of 65 decks +30% synergy
Phyrexian Arena
30% of 241 decks +15% synergy
Grave Pact
29% of 241 decks +24% synergy
Bastion of Remembrance
29% of 224 decks +22% synergy
Impact Tremors
28% of 65 decks +18% synergy
Black Market
26% of 241 decks +22% synergy
Mystic Remora
25% of 16 decks +7% synergy
Braid of Fire
23% of 65 decks +22% synergy
Branching Evolution
23% of 13 decks +18% synergy
Earthcraft
21% of 14 decks +21% synergy
Awakening Zone
21% of 14 decks +19% synergy
Primal Vigor
21% of 14 decks +19% synergy
Parallel Lives
21% of 14 decks +14% synergy
Hardened Scales
21% of 14 decks +13% synergy
Sylvan Library
21% of 14 decks +10% synergy
Heartless Summoning
21% of 241 decks +20% synergy
Dictate of Erebos
18% of 239 decks +15% synergy
The Meathook Massacre
18% of 215 decks +13% synergy
Necropotence
17% of 241 decks +12% synergy
Black Market Connections
16% of 200 decks +6% synergy
Ripples of Undeath
14% of 35 decks +8% synergy
Animate Dead
14% of 241 decks +5% synergy
Uncivil Unrest
14% of 36 decks +12% synergy
Mana Echoes
14% of 65 decks +13% synergy
Agent of the Iron Throne
13% of 200 decks +10% synergy
Mindmoil
11% of 65 decks +11% synergy
Exquisite Blood
10% of 239 decks +5% synergy
Underworld Breach
10% of 61 decks +4% synergy
Phyrexian Reclamation
10% of 241 decks +6% synergy
Sneak Attack
9% of 65 decks +7% synergy
Open the Graves
9% of 235 decks +8% synergy
Contamination
9% of 241 decks +8% synergy
Sanguine Bond
8% of 241 decks +2% synergy
Thran Vigil
8% of 160 decks +7% synergy
Greed
7% of 241 decks +5% synergy
Necromancy
7% of 241 decks +4% synergy
Bitterblossom
6% of 241 decks +2% synergy
Blood Moon
6% of 65 decks +3% synergy
Virtue of Persistence
6% of 101 decks +3% synergy
Tortured Existence
6% of 241 decks +4% synergy
Attrition
5% of 241 decks +5% synergy
Vampiric Rites
5% of 238 decks +3% synergy
Planeswalkers
Liliana, Dreadhorde General
9% of 232 decks +6% synergy
Liliana of the Dark Realms
6% of 239 decks +5% synergy
Utility Lands
Gavony Township
60% of 5 decks +50% synergy
Cabal Coffers
57% of 241 decks +46% synergy
Urborg, Tomb of Yawgmoth
47% of 241 decks +37% synergy
Bojuka Bog
42% of 241 decks +12% synergy
Phyrexian Tower
34% of 241 decks +25% synergy
Cabal Stronghold
31% of 235 decks +28% synergy
Nykthos, Shrine to Nyx
26% of 239 decks +20% synergy
Reliquary Tower
26% of 241 decks -4% synergy
Ancient Tomb
20% of 241 decks +10% synergy
High Market
20% of 241 decks +17% synergy
Takenuma, Abandoned Mire
18% of 207 decks +7% synergy
Witch's Cottage
16% of 230 decks +12% synergy
Castle Locthwain
16% of 230 decks +11% synergy
Temple of the False God
16% of 241 decks +6% synergy
Urza's Saga
14% of 217 decks +7% synergy
Spymaster's Vault
13% of 45 decks +9% synergy
Great Furnace
12% of 65 decks +7% synergy
Buried Ruin
12% of 241 decks +7% synergy
Inventors' Fair
11% of 236 decks +7% synergy
Barren Moor
10% of 241 decks +6% synergy
Sokenzan, Crucible of Defiance
9% of 54 decks +4% synergy
Mortuary Mire
9% of 238 decks +4% synergy
Crypt of Agadeem
9% of 241 decks +7% synergy
War Room
9% of 220 decks +2% synergy
Thespian's Stage
8% of 239 decks +5% synergy
Vault of Whispers
8% of 241 decks +3% synergy
Rogue's Passage
8% of 239 decks -12% synergy
Volrath's Stronghold
7% of 241 decks +6% synergy
Command Beacon
7% of 237 decks +2% synergy
Zhalfirin Void
7% of 235 decks +6% synergy
Forgotten Cave
6% of 65 decks +2% synergy
Hidden Necropolis
6% of 84 decks +5% synergy
Deserted Temple
5% of 241 decks +5% synergy
Mana Artifacts
Sol Ring
94% of 241 decks +9% synergy
Arcane Signet
64% of 230 decks -8% synergy
Golgari Signet
50% of 14 decks +37% synergy
Talisman of Creativity
50% of 10 decks +21% synergy
Talisman of Dominance
50% of 16 decks +19% synergy
Rakdos Signet
48% of 65 decks +18% synergy
Talisman of Indulgence
46% of 65 decks +20% synergy
Dimir Signet
31% of 16 decks +1% synergy
Talisman of Resilience
29% of 14 decks +17% synergy
Mind Stone
28% of 241 decks +10% synergy
Izzet Signet
27% of 11 decks -1% synergy
Mana Crypt
19% of 241 decks +10% synergy
Charcoal Diamond
19% of 241 decks +13% synergy
Thought Vessel
17% of 237 decks +0% synergy
Jeweled Lotus
15% of 220 decks +9% synergy
Fellwar Stone
15% of 241 decks -6% synergy
Mana Vault
14% of 241 decks +8% synergy
Commander's Sphere
13% of 239 decks -3% synergy
Sceptre of Eternal Glory
12% of 174 decks +11% synergy
Thran Dynamo
12% of 241 decks +7% synergy
Caged Sun
11% of 241 decks +9% synergy
Chrome Mox
10% of 241 decks +4% synergy
Crowded Crypt
9% of 215 decks +7% synergy
Lotus Petal
9% of 241 decks +2% synergy
Throne of Eldraine
9% of 93 decks +6% synergy
Nyx Lotus
8% of 228 decks +6% synergy
Thran Turbine
7% of 241 decks +7% synergy
Basalt Monolith
7% of 241 decks +4% synergy
Worn Powerstone
6% of 241 decks +4% synergy
Mox Opal
6% of 241 decks +2% synergy
Gilded Lotus
5% of 241 decks +2% synergy
Everflowing Chalice
5% of 241 decks +1% synergy
Lands
Temple Garden
100% of 5 decks +59% synergy
Stomping Ground
100% of 3 decks +59% synergy
Overgrown Tomb
93% of 14 decks +50% synergy
Godless Shrine
86% of 7 decks +45% synergy
Steam Vents
73% of 11 decks +34% synergy
Watery Grave
69% of 16 decks +28% synergy
Blood Crypt
68% of 65 decks +29% synergy
Shivan Reef
64% of 11 decks +37% synergy
Sulfur Falls
64% of 11 decks +33% synergy
Dragonskull Summit
63% of 65 decks +32% synergy
Savannah
60% of 5 decks +47% synergy
Vault of Champions
60% of 5 decks +34% synergy
Xander's Lounge
60% of 10 decks +32% synergy
Indatha Triome
60% of 5 decks +29% synergy
Undergrowth Stadium
50% of 12 decks +24% synergy
Sulfurous Springs
46% of 65 decks +26% synergy
Luxury Suite
46% of 65 decks +20% synergy
Smoldering Marsh
45% of 65 decks +12% synergy
Drowned Catacomb
44% of 16 decks +18% synergy
Scrubland
43% of 7 decks +29% synergy
Llanowar Wastes
43% of 14 decks +17% synergy
Woodland Cemetery
43% of 14 decks +15% synergy
Temple of Malice
42% of 65 decks +27% synergy
Haunted Ridge
41% of 56 decks +25% synergy
Stormcarved Coast
40% of 10 decks +23% synergy
Crumbling Necropolis
36% of 11 decks +5% synergy
Twilight Mire
36% of 14 decks +26% synergy
Tainted Wood
36% of 14 decks +23% synergy
Bayou
36% of 14 decks +22% synergy
Graven Cairns
35% of 65 decks +28% synergy
Shipwreck Marsh
33% of 15 decks +14% synergy
Command Tower
32% of 241 decks -42% synergy
Blightstep Pathway
32% of 57 decks +22% synergy
Underground River
31% of 16 decks +12% synergy
Rakdos Carnarium
31% of 65 decks +16% synergy
Training Center
30% of 10 decks +2% synergy
Golgari Rot Farm
29% of 14 decks +11% synergy
Necroblossom Snarl
25% of 12 decks +13% synergy
Morphic Pool
25% of 16 decks -1% synergy
Foreboding Ruins
25% of 65 decks +9% synergy
Raucous Theater
24% of 21 decks +11% synergy
Jungle Hollow
21% of 14 decks +13% synergy
Temple of Malady
21% of 14 decks +5% synergy
Canyon Slough
18% of 65 decks +13% synergy
Badlands
18% of 65 decks +5% synergy
Tainted Peak
17% of 65 decks +7% synergy
Shadowblood Ridge
17% of 65 decks +5% synergy
Myriad Landscape
17% of 239 decks -3% synergy
Geothermal Bog
16% of 51 decks +12% synergy
Blackcleave Cliffs
15% of 65 decks +10% synergy