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
9.21% of 1542 decks 142 decks
Grenzo, Dungeon Warden
1.29% of 3563 decks 46 decks
Marchesa, the Black Rose
0.11% of 10361 decks 11 decks
Imotekh the Stormlord
0.13% of 6844 decks 9 decks
Meren of Clan Nel Toth
0.02% of 16614 decks 4 decks
Acererak the Archlich
0.22% of 1356 decks 3 decks
K'rrik, Son of Yawgmoth
0.01% of 15499 decks 2 decks
Bane, Lord of Darkness
0.09% of 2134 decks 2 decks
Ghave, Guru of Spores
0.03% of 6616 decks 2 decks
Yawgmoth, Thran Physician
0.04% of 5616 decks 2 decks
Sidisi, Undead Vizier
0.34% of 592 decks 2 decks
Gilanra, Caller of Wirewood // Vial Smasher the Fierce
0.17% of 585 decks 1 decks
Toxrill, the Corrosive
0.02% of 6376 decks 1 decks
Maralen of the Mornsong
0.06% of 1787 decks 1 decks
Deadpool, Trading Card
0.02% of 5653 decks 1 decks
Gev, Scaled Scorch
0.02% of 6348 decks 1 decks
Colfenor, the Last Yew
0.09% of 1088 decks 1 decks
Phage the Untouchable
0.04% of 2347 decks 1 decks
New Cards
Bone Devourer
6% of 16 decks +6% synergy
Teval's Judgment
6% of 16 decks +4% synergy
Jade-Cast Sentinel
6% of 16 decks +6% synergy
The Sibsig Ceremony
6% of 18 decks +5% synergy
High Synergy Cards
Triskelion
72% of 253 decks +71% synergy
Murderous Redcap
67% of 67 decks +66% synergy
Viscera Seer
74% of 253 decks +65% synergy
Phyrexian Altar
60% of 253 decks +57% synergy
Kiki-Jiki, Mirror Breaker
57% of 67 decks +53% synergy
Putrid Goblin
53% of 253 decks +52% synergy
Glen Elendra Archmage
53% of 15 decks +51% synergy
Walking Ballista
53% of 253 decks +51% synergy
Blood Artist
62% of 253 decks +50% synergy
Carrion Feeder
54% of 253 decks +49% synergy
Top Cards
Dark Ritual
62% of 253 decks +40% synergy
Zulaport Cutthroat
56% of 253 decks +47% synergy
Sakura-Tribe Elder
54% of 13 decks +36% synergy
Gray Merchant of Asphodel
51% of 253 decks +42% synergy
Pitiless Plunderer
48% of 253 decks +40% synergy
Zealous Conscripts
48% of 67 decks +46% synergy
Altar of Dementia
47% of 253 decks +44% synergy
River Kelpie
47% of 15 decks +46% synergy
Puppeteer Clique
46% of 253 decks +45% synergy
Three Visits
46% of 13 decks +22% synergy
Game Changers
Demonic Tutor
46% of 253 decks +25% synergy
Enlightened Tutor
43% of 7 decks +26% synergy
Rhystic Study
40% of 15 decks +13% synergy
Vampiric Tutor
38% of 253 decks +20% synergy
Fierce Guardianship
33% of 15 decks +15% synergy
Bolas's Citadel
24% of 253 decks +15% synergy
Gaea's Cradle
23% of 13 decks +17% synergy
Ancient Tomb
23% of 253 decks +13% synergy
Imperial Seal
14% of 253 decks +9% synergy
Mana Vault
14% of 253 decks +8% synergy
Creatures
Priest of Urabrask
42% of 67 decks +41% synergy
Tatterkite
42% of 253 decks +41% synergy
Solemn Simulacrum
40% of 253 decks +27% synergy
Baleful Strix
40% of 15 decks +27% synergy
Crypt Ghast
39% of 253 decks +34% synergy
Gravecrawler
38% of 253 decks +35% synergy
Pawn of Ulamog
37% of 253 decks +35% synergy
Ayara, First of Locthwain
36% of 253 decks +32% synergy
Goblin Engineer
34% of 67 decks +31% synergy
Yawgmoth, Thran Physician
34% of 253 decks +30% synergy
Flayer of the Hatebound
33% of 67 decks +32% synergy
Chainbreaker
32% of 253 decks +32% synergy
Warren Soultrader
32% of 133 decks +26% synergy
Siege-Gang Commander
31% of 67 decks +29% synergy
Imperial Recruiter
31% of 67 decks +26% synergy
Chatterfang, Squirrel General
31% of 13 decks +25% synergy
Wood Elves
31% of 13 decks +25% synergy
Eternal Witness
31% of 13 decks +11% synergy
Cryptic Trilobite
30% of 253 decks +30% synergy
Grim Haruspex
30% of 253 decks +26% synergy
Lesser Masticore
29% of 253 decks +29% synergy
Danny Pink
29% of 14 decks +27% synergy
Goblin Welder
28% of 67 decks +26% synergy
Plague Belcher
28% of 253 decks +27% synergy
Skirk Prospector
27% of 67 decks +24% synergy
Spark Double
27% of 15 decks +20% synergy
Lingering Tormentor
26% of 253 decks +26% synergy
Iron Myr
25% of 67 decks +23% synergy
Dockside Extortionist
25% of 67 decks +17% synergy
Crystalline Crawler
25% of 253 decks +25% synergy
Spike Feeder
23% of 13 decks +23% synergy
Jarad, Golgari Lich Lord
23% of 13 decks +20% synergy
Acidic Slime
23% of 13 decks +20% synergy
Peregrin Took
23% of 13 decks +19% synergy
Corpsejack Menace
23% of 13 decks +18% synergy
Kami of Whispered Hopes
23% of 13 decks +16% synergy
Reclamation Sage
23% of 13 decks +13% synergy
Elves of Deep Shadow
23% of 13 decks +13% synergy
Deathrite Shaman
23% of 13 decks +11% synergy
Syr Konrad, the Grim
23% of 253 decks +14% synergy
Wingrattle Scarecrow
23% of 253 decks +22% synergy
Goblin Matron
22% of 67 decks +20% synergy
Sidisi, Undead Vizier
22% of 253 decks +20% synergy
Falkenrath Noble
21% of 253 decks +19% synergy
Marionette Apprentice
20% of 133 decks +15% synergy
Thalakos Deceiver
20% of 15 decks +20% synergy
Sage of Fables
20% of 15 decks +20% synergy
Grimgrin, Corpse-Born
20% of 15 decks +19% synergy
Trinket Mage
20% of 15 decks +18% synergy
Herald of Secret Streams
20% of 15 decks +17% synergy
Instants
Angel's Grace
43% of 7 decks +41% synergy
Path to Exile
43% of 7 decks -4% synergy
Swords to Plowshares
43% of 7 decks -20% synergy
Valakut Awakening
36% of 67 decks +30% synergy
Mana Drain
33% of 15 decks +18% synergy
Chaos Warp
31% of 67 decks +0% synergy
Heroic Intervention
31% of 13 decks +1% synergy
Assassin's Trophy
31% of 13 decks +0% synergy
Village Rites
28% of 253 decks +18% synergy
Culling the Weak
27% of 253 decks +23% synergy
Cyclonic Rift
27% of 15 decks +0% synergy
Terminate
24% of 67 decks +4% synergy
Defile
24% of 253 decks +21% synergy
Krosan Grip
23% of 13 decks +16% synergy
Abrupt Decay
23% of 13 decks +13% synergy
Worldly Tutor
23% of 13 decks +10% synergy
Putrefy
23% of 13 decks +7% synergy
Tragic Slip
23% of 253 decks +19% synergy
Deflecting Swat
22% of 67 decks +6% synergy
Cabal Ritual
21% of 253 decks +17% synergy
Deadly Dispute
21% of 253 decks +10% synergy
Entomb
21% of 253 decks +13% synergy
Brainstorm
20% of 15 decks +0% synergy
Withering Torment
20% of 97 decks +12% synergy
Pyroblast
16% of 67 decks +10% synergy
Deadly Rollick
16% of 253 decks +5% synergy
Fire Prophecy
15% of 67 decks +15% synergy
Red Elemental Blast
15% of 67 decks +9% synergy
Imp's Mischief
14% of 253 decks +11% synergy
Corrupted Conviction
14% of 253 decks +9% synergy
Malakir Rebirth
14% of 253 decks +6% synergy
Rakdos Charm
13% of 67 decks -1% synergy
Infernal Grasp
13% of 253 decks +6% synergy
Fell the Profane
12% of 133 decks +4% synergy
First Day of Class
12% of 67 decks +12% synergy
Bedevil
12% of 67 decks -2% synergy
Sudden Spoiling
10% of 253 decks +9% synergy
Go for the Throat
10% of 253 decks +3% synergy
Tibalt's Trickery
9% of 67 decks +4% synergy
Snuff Out
8% of 253 decks +6% synergy
Baleful Mastery
8% of 253 decks +5% synergy
Saw in Half
8% of 253 decks +4% synergy
Volcanic Spite
7% of 67 decks +7% synergy
Abrade
7% of 67 decks -4% synergy
Not Dead After All
7% of 223 decks +4% synergy
Flare of Duplication
7% of 44 decks +4% synergy
Supernatural Stamina
7% of 253 decks +5% synergy
Burnt Offering
6% of 67 decks +4% synergy
Fire Covenant
6% of 67 decks +3% synergy
Sacrifice
6% of 253 decks +5% synergy
Sorceries
Nature's Lore
46% of 13 decks +14% synergy
Diabolic Intent
40% of 253 decks +32% synergy
Feed the Swarm
39% of 253 decks +22% synergy
Farseek
38% of 13 decks +4% synergy
Blasphemous Act
31% of 67 decks -2% synergy
Reanimate
29% of 253 decks +13% synergy
Diabolic Tutor
28% of 253 decks +22% synergy
Sign in Blood
27% of 253 decks +18% synergy
Toxic Deluge
26% of 253 decks +9% synergy
Victimize
25% of 253 decks +13% synergy
Kodama's Reach
23% of 13 decks -7% synergy
Damnation
21% of 253 decks +13% synergy
Gamble
19% of 67 decks +10% synergy
Night's Whisper
19% of 253 decks +10% synergy
Vandalblast
18% of 67 decks +2% synergy
Jeska's Will
18% of 67 decks +1% synergy
Exsanguinate
18% of 253 decks +12% synergy
Bubbling Muck
17% of 253 decks +16% synergy
Grim Tutor
17% of 253 decks +13% synergy
Into the Fire
16% of 67 decks +16% synergy
Dread Return
15% of 253 decks +10% synergy
Read the Bones
15% of 253 decks +8% synergy
Living Death
14% of 253 decks +9% synergy
Buried Alive
13% of 253 decks +7% synergy
Mutilate
12% of 253 decks +10% synergy
Insatiable Avarice
11% of 149 decks +8% synergy
Torment of Hailfire
11% of 253 decks +6% synergy
Beseech the Queen
10% of 253 decks +9% synergy
Persist
9% of 253 decks +7% synergy
Profane Tutor
9% of 253 decks +7% synergy
Beseech the Mirror
9% of 225 decks +6% synergy
Blasphemous Edict
8% of 83 decks +1% synergy
Agadeem's Awakening
8% of 253 decks +5% synergy
Black Sun's Zenith
8% of 253 decks +6% synergy
Unearth
8% of 253 decks +4% synergy
Twinflame
7% of 67 decks +5% synergy
Faithless Looting
7% of 67 decks -9% synergy
Doomsday
7% of 253 decks +6% synergy
Last One Standing
6% of 67 decks +5% synergy
Cruel Tutor
5% of 253 decks +5% synergy
Dark Petition
5% of 253 decks +4% synergy
Utility Artifacts
Skullclamp
45% of 253 decks +33% synergy
Birthing Pod
38% of 13 decks +36% synergy
Blasting Station
38% of 253 decks +37% synergy
Jet Medallion
33% of 253 decks +30% synergy
Lightning Greaves
32% of 253 decks +7% synergy
Mind Stone
28% of 253 decks +12% synergy
Altar of the Brood
21% of 253 decks +20% synergy
Cauldron of Souls
20% of 253 decks +20% synergy
Swiftfoot Boots
16% of 253 decks -11% synergy
Heartstone
15% of 253 decks +15% synergy
Sensei's Divining Top
15% of 253 decks +10% synergy
Bontu's Monument
15% of 253 decks +13% synergy
Nim Deathmantle
15% of 253 decks +14% synergy
The Cauldron of Eternity
14% of 253 decks +13% synergy
Wayfarer's Bauble
13% of 253 decks +4% synergy
Jeweled Lotus
12% of 253 decks +8% synergy
Desecrated Tomb
11% of 253 decks +10% synergy
Lotus Petal
10% of 253 decks +3% synergy
Commander's Sphere
10% of 253 decks -4% synergy
Krark-Clan Ironworks
9% of 253 decks +8% synergy
Expedition Map
9% of 253 decks +6% synergy
The One Ring
9% of 253 decks +1% synergy
Tel-Jilad Stylus
9% of 253 decks +9% synergy
Aetherflux Reservoir
9% of 253 decks +5% synergy
Spawning Pit
8% of 253 decks +8% synergy
Teferi's Puzzle Box
8% of 253 decks +7% synergy
Reito Lantern
7% of 253 decks +7% synergy
Crowded Crypt
7% of 253 decks +6% synergy
Moonsilver Key
7% of 253 decks +5% synergy
Wishclaw Talisman
7% of 253 decks +1% synergy
The Ozolith
6% of 253 decks +2% synergy
Agatha's Soul Cauldron
5% of 225 decks +4% synergy
Grinding Station
5% of 253 decks +5% synergy
Enchantments
Retribution of the Ancients
36% of 253 decks +36% synergy
Goblin Bombardment
36% of 67 decks +30% synergy
Phyrexian Arena
34% of 253 decks +19% synergy
Bastion of Remembrance
31% of 253 decks +25% synergy
Doubling Season
31% of 13 decks +21% synergy
Grave Pact
28% of 253 decks +24% synergy
Braid of Fire
27% of 67 decks +26% synergy
Impact Tremors
27% of 67 decks +17% synergy
Awakening Zone
23% of 13 decks +21% synergy
Hardened Scales
23% of 13 decks +14% synergy
Heartless Summoning
23% of 253 decks +22% synergy
Black Market
23% of 253 decks +19% synergy
Mystic Remora
20% of 15 decks +3% synergy
Mana Echoes
18% of 67 decks +17% synergy
The Meathook Massacre
18% of 253 decks +13% synergy
Necropotence
17% of 253 decks +12% synergy
Black Market Connections
15% of 253 decks +4% synergy
Dictate of Erebos
15% of 253 decks +11% synergy
Animate Dead
13% of 253 decks +4% synergy
Mindmoil
12% of 67 decks +12% synergy
Agent of the Iron Throne
11% of 253 decks +9% synergy
Uncivil Unrest
10% of 67 decks +9% synergy
Underworld Breach
10% of 67 decks +5% synergy
Exquisite Blood
9% of 253 decks +4% synergy
Fires of Invention
9% of 67 decks +9% synergy
Contamination
9% of 253 decks +8% synergy
Sanguine Bond
8% of 253 decks +2% synergy
Open the Graves
7% of 253 decks +6% synergy
Tortured Existence
7% of 253 decks +5% synergy
Greed
7% of 253 decks +5% synergy
Phyrexian Reclamation
7% of 253 decks +3% synergy
Bitterblossom
7% of 253 decks +3% synergy
Necromancy
6% of 253 decks +3% synergy
Ripples of Undeath
6% of 132 decks +1% synergy
Sneak Attack
6% of 67 decks +4% synergy
Blood Moon
6% of 67 decks +3% synergy
Dark Privilege
6% of 253 decks +5% synergy
Thran Vigil
5% of 253 decks +5% synergy
Attrition
5% of 253 decks +4% synergy
Planeswalkers
Liliana, Dreadhorde General
9% of 253 decks +5% synergy
Liliana of the Dark Realms
7% of 253 decks +5% synergy
Utility Lands
Cabal Coffers
57% of 253 decks +47% synergy
Urborg, Tomb of Yawgmoth
48% of 253 decks +39% synergy
Bojuka Bog
42% of 253 decks +12% synergy
Phyrexian Tower
36% of 253 decks +28% synergy
Cabal Stronghold
30% of 253 decks +27% synergy
Nykthos, Shrine to Nyx
28% of 253 decks +22% synergy
Reliquary Tower
25% of 253 decks -5% synergy
High Market
19% of 253 decks +17% synergy
Witch's Cottage
17% of 253 decks +14% synergy
Takenuma, Abandoned Mire
16% of 253 decks +7% synergy
Castle Locthwain
16% of 253 decks +11% synergy
Temple of the False God
15% of 253 decks +6% synergy
Urza's Saga
12% of 253 decks +5% synergy
Great Furnace
12% of 67 decks +7% synergy
Barren Moor
11% of 253 decks +7% synergy
Inventors' Fair
10% of 253 decks +7% synergy
Mortuary Mire
10% of 253 decks +5% synergy
Buried Ruin
10% of 253 decks +5% synergy
Thespian's Stage
9% of 253 decks +7% synergy
Spymaster's Vault
9% of 133 decks +6% synergy
War Room
9% of 253 decks +3% synergy
Rogue's Passage
8% of 253 decks -12% synergy
Crypt of Agadeem
8% of 253 decks +6% synergy
Vault of Whispers
8% of 253 decks +3% synergy
Command Beacon
7% of 253 decks +3% synergy
Volrath's Stronghold
7% of 253 decks +5% synergy
Deserted Temple
6% of 253 decks +5% synergy
Zhalfirin Void
6% of 253 decks +5% synergy
Lake of the Dead
5% of 253 decks +5% synergy
Vesuva
5% of 253 decks +4% synergy
Mana Artifacts
Sol Ring
94% of 253 decks +9% synergy
Arcane Signet
64% of 253 decks -9% synergy
Golgari Signet
54% of 13 decks +42% synergy
Talisman of Indulgence
48% of 67 decks +21% synergy
Talisman of Dominance
47% of 15 decks +15% synergy
Rakdos Signet
45% of 67 decks +16% synergy
Dimir Signet
40% of 15 decks +11% synergy
Talisman of Resilience
38% of 13 decks +26% synergy
Talisman of Creativity
33% of 12 decks +5% synergy
Izzet Signet
25% of 12 decks -2% synergy
Charcoal Diamond
20% of 253 decks +15% synergy
Thought Vessel
19% of 253 decks +1% synergy
Fellwar Stone
18% of 253 decks -3% synergy
Thran Dynamo
15% of 253 decks +10% synergy
Mana Crypt
15% of 253 decks +9% synergy
Caged Sun
11% of 253 decks +9% synergy
Chrome Mox
10% of 253 decks +4% synergy
Sceptre of Eternal Glory
9% of 253 decks +8% synergy
Thran Turbine
8% of 253 decks +7% synergy
Nyx Lotus
6% of 253 decks +5% synergy
Worn Powerstone
6% of 253 decks +4% synergy
Gilded Lotus
6% of 253 decks +3% synergy
Mox Opal
5% of 253 decks +1% synergy
Lands
Overgrown Tomb
85% of 13 decks +43% synergy
Savannah
80% of 5 decks +67% synergy
Indatha Triome
80% of 5 decks +50% synergy
Temple Garden
80% of 5 decks +40% synergy
Godless Shrine
71% of 7 decks +31% synergy
Blood Crypt
67% of 67 decks +29% synergy
Steam Vents
67% of 12 decks +28% synergy
Watery Grave
60% of 15 decks +20% synergy
Dragonskull Summit
60% of 67 decks +27% synergy
Xander's Lounge
58% of 12 decks +33% synergy
Scrubland
57% of 7 decks +44% synergy
Luxury Suite
52% of 67 decks +26% synergy
Shivan Reef
50% of 12 decks +22% synergy
Sulfur Falls
50% of 12 decks +18% synergy
Woodland Cemetery
46% of 13 decks +16% synergy
Smoldering Marsh
45% of 67 decks +12% synergy
Sulfurous Springs
43% of 67 decks +22% synergy
Drowned Catacomb
40% of 15 decks +13% synergy
Temple of Malice
39% of 67 decks +24% synergy
Haunted Ridge
39% of 67 decks +23% synergy
Twilight Mire
38% of 13 decks +28% synergy
Bayou
38% of 13 decks +25% synergy
Tainted Wood
38% of 13 decks +25% synergy
Golgari Rot Farm
38% of 13 decks +21% synergy
Undergrowth Stadium
38% of 13 decks +13% synergy
Llanowar Wastes
38% of 13 decks +12% synergy
Underground River
33% of 15 decks +13% synergy
Crumbling Necropolis
33% of 12 decks +2% synergy
Rakdos Carnarium
30% of 67 decks +16% synergy
Command Tower
30% of 253 decks -45% synergy
Graven Cairns
27% of 67 decks +19% synergy
Morphic Pool
27% of 15 decks +1% synergy
Tainted Peak
25% of 67 decks +15% synergy
Underground Mortuary
25% of 12 decks +12% synergy
Stormcarved Coast
25% of 12 decks +7% synergy
Training Center
25% of 12 decks -2% synergy
Foreboding Ruins
24% of 67 decks +8% synergy
Blazemire Verge
24% of 38 decks +13% synergy
Jungle Hollow
23% of 13 decks +14% synergy
Necroblossom Snarl
23% of 13 decks +11% synergy
Deathcap Glade
23% of 13 decks +10% synergy
Temple of Malady
23% of 13 decks +6% synergy
Blightstep Pathway
22% of 67 decks +13% synergy
Badlands
21% of 67 decks +8% synergy
Raucous Theater
21% of 53 decks +11% synergy
Shipwreck Marsh
20% of 15 decks +1% synergy
Blackcleave Cliffs
19% of 67 decks +13% synergy
Shadowblood Ridge
19% of 67 decks +7% synergy
Canyon Slough
18% of 67 decks +11% synergy
Myriad Landscape
17% of 253 decks -1% synergy