Workhorse + Nim Deathmantle + Ashnod's Altar

Workhorse
Nim Deathmantle
Ashnod's Altar

Requires
Workhorse must be on the battlefield. Nim Deathmantle must be on the battlefield. Ashnod's Altar must be on the battlefield. Nim Deathmantle attached to Workhorse.
Steps
  1. Activate Workhorse by removing four +1/+1 counters, adding .
  2. Activate Ashnod's Altar by sacrificing Workhorse, adding .
  3. Workhorse dies, triggering Nim Deathmantle, causing you to pay 4 to return Workhorse from your graveyard to the battlefield, and attach Nim Deathmantle to it.
  4. Workhorse enters the battlefield with four +1/+1 counters on it.
  5. Repeat.
Results
Infinite colorless mana. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Grenzo, Dungeon Warden
6.79% of 3286 decks 223 decks
Imotekh the Stormlord
0.67% of 6524 decks 44 decks
Mikaeus, the Unhallowed
0.81% of 1358 decks 11 decks
Omarthis, Ghostfire Initiate
0.50% of 1788 decks 9 decks
Shirei, Shizo's Caretaker
0.11% of 5420 decks 6 decks
Sharuum the Hegemon
0.20% of 1976 decks 4 decks
Abdel Adrian, Gorion's Ward // Street Urchin
1.32% of 228 decks 3 decks
Ao, the Dawn Sky
0.46% of 658 decks 3 decks
Herigast, Erupting Nullkite
0.15% of 2005 decks 3 decks
Preston, the Vanisher
0.06% of 3253 decks 2 decks
Henzie "Toolbox" Torre
0.01% of 14785 decks 2 decks
Xantcha, Sleeper Agent
0.06% of 3140 decks 2 decks
Phenax, God of Deception
0.03% of 6386 decks 2 decks
Bjorna, Nightfall Alchemist // Othelm, Sigardian Outcast
0.74% of 272 decks 2 decks
K'rrik, Son of Yawgmoth
0.01% of 14093 decks 2 decks
Karn, Silver Golem
0.19% of 1054 decks 2 decks
Purphoros, God of the Forge
0.05% of 3794 decks 2 decks
Trazyn the Infinite
0.10% of 1922 decks 2 decks
New Cards
Blazemire Verge
80% of 15 decks +59% synergy
Withering Torment
65% of 17 decks +45% synergy
Enduring Courage
50% of 6 decks +41% synergy
High Synergy Cards
Murderous Redcap
90% of 232 decks +89% synergy
Priest of Urabrask
79% of 253 decks +79% synergy
Kiki-Jiki, Mirror Breaker
79% of 253 decks +76% synergy
Siege-Gang Commander
74% of 253 decks +72% synergy
Barkform Harvester
73% of 55 decks +72% synergy
Skirk Prospector
74% of 253 decks +72% synergy
Zealous Conscripts
71% of 253 decks +69% synergy
Viscera Seer
76% of 308 decks +67% synergy
Unctus, Grand Metatect
67% of 6 decks +65% synergy
Goblin Engineer
68% of 252 decks +65% synergy
Top Cards
Pitiless Plunderer
67% of 307 decks +59% synergy
Etherium Sculptor
67% of 15 decks +61% synergy
Zulaport Cutthroat
66% of 307 decks +57% synergy
Sling-Gang Lieutenant
64% of 306 decks +63% synergy
Goblin Welder
64% of 253 decks +61% synergy
The Cauldron of Eternity
63% of 304 decks +63% synergy
Gray Merchant of Asphodel
62% of 307 decks +52% synergy
Solemn Simulacrum
61% of 357 decks +47% synergy
Deathbringer Thoctar
61% of 232 decks +60% synergy
Emrakul's Hatcher
59% of 253 decks +58% synergy
Creatures
Anger
58% of 253 decks +52% synergy
Hoverstone Pilgrim
58% of 154 decks +58% synergy
Tomb Trawler
57% of 110 decks +57% synergy
Iron Myr
57% of 253 decks +54% synergy
Pawn of Ulamog
57% of 308 decks +55% synergy
Phyrexian Metamorph
53% of 15 decks +46% synergy
Epitaph Golem
53% of 356 decks +53% synergy
Leaden Myr
53% of 308 decks +51% synergy
Woe Strider
53% of 301 decks +50% synergy
Chainer, Nightmare Adept
52% of 231 decks +47% synergy
Marionette Master
51% of 307 decks +47% synergy
Warren Soultrader
50% of 80 decks +43% synergy
Lightning Crafter
49% of 253 decks +49% synergy
Palladium Myr
49% of 357 decks +47% synergy
Junk Diver
48% of 357 decks +48% synergy
Priest of Gix
48% of 308 decks +48% synergy
Treasonous Ogre
48% of 253 decks +46% synergy
Meteor Golem
48% of 356 decks +46% synergy
Agate Instigator
48% of 21 decks +39% synergy
Goblin Trashmaster
47% of 253 decks +46% synergy
Imperial Recruiter
46% of 253 decks +40% synergy
Goblin Sharpshooter
45% of 253 decks +44% synergy
Crypt Ghast
45% of 307 decks +40% synergy
Eternal Witness
44% of 16 decks +23% synergy
Recruiter of the Guard
43% of 21 decks +40% synergy
Karmic Guide
43% of 21 decks +38% synergy
Puppeteer Clique
40% of 308 decks +39% synergy
Plaguecrafter
40% of 306 decks +35% synergy
Dockside Extortionist
40% of 252 decks +28% synergy
Metallic Mimic
40% of 356 decks +38% synergy
Marionette Apprentice
39% of 80 decks +31% synergy
Duplicant
39% of 357 decks +38% synergy
Felidar Guardian
38% of 21 decks +36% synergy
Phyrexian Delver
37% of 308 decks +36% synergy
Goblin Matron
36% of 253 decks +34% synergy
Boggart Trawler
36% of 67 decks +31% synergy
Dimir House Guard
36% of 308 decks +35% synergy
Mad Auntie
35% of 308 decks +35% synergy
Faceless Butcher
34% of 308 decks +34% synergy
Furystoke Giant
34% of 253 decks +34% synergy
Body Snatcher
34% of 308 decks +34% synergy
Grand Architect
33% of 15 decks +33% synergy
Eldrazi Displacer
33% of 21 decks +32% synergy
Master Transmuter
33% of 15 decks +32% synergy
Spirited Companion
33% of 18 decks +29% synergy
Archivist of Oghma
33% of 18 decks +27% synergy
Pinnacle Monk
33% of 54 decks +26% synergy
Grand Abolisher
33% of 21 decks +24% synergy
Sun Titan
33% of 21 decks +23% synergy
Burnished Hart
33% of 356 decks +29% synergy
Instants
Swords to Plowshares
57% of 21 decks -6% synergy
Valakut Awakening
56% of 244 decks +49% synergy
Enlightened Tutor
52% of 21 decks +35% synergy
Beast Within
50% of 16 decks +11% synergy
Whir of Invention
47% of 15 decks +44% synergy
Lim-Dûl's Vault
43% of 7 decks +39% synergy
Silence
43% of 21 decks +36% synergy
Path to Exile
43% of 21 decks -3% synergy
Mystical Tutor
40% of 15 decks +25% synergy
Counterspell
40% of 15 decks -3% synergy
Swan Song
33% of 15 decks +17% synergy
An Offer You Can't Refuse
33% of 9 decks +12% synergy
Cyclonic Rift
33% of 15 decks +6% synergy
Heroic Intervention
31% of 16 decks +2% synergy
Ephemerate
29% of 21 decks +23% synergy
Generous Gift
29% of 21 decks +3% synergy
Thirst for Knowledge
27% of 15 decks +25% synergy
Dramatic Reversal
27% of 15 decks +21% synergy
Pact of Negation
27% of 15 decks +19% synergy
Force of Will
27% of 15 decks +16% synergy
Mana Drain
27% of 15 decks +11% synergy
Dark Ritual
26% of 308 decks +4% synergy
Teferi's Protection
24% of 21 decks +4% synergy
Vampiric Tutor
20% of 308 decks +2% synergy
Fire Prophecy
20% of 244 decks +20% synergy
Volcanic Spite
20% of 155 decks +20% synergy
Pull from Tomorrow
20% of 15 decks +17% synergy
Brainstorm
20% of 15 decks -1% synergy
Chord of Calling
19% of 16 decks +13% synergy
Krosan Grip
19% of 16 decks +11% synergy
Fell the Profane
19% of 80 decks +7% synergy
Worldly Tutor
19% of 16 decks +5% synergy
Chaos Warp
17% of 253 decks -15% synergy
Entomb
17% of 308 decks +9% synergy
Lae'zel's Acrobatics
17% of 18 decks +15% synergy
Cloudshift
14% of 21 decks +11% synergy
Eerie Interlude
14% of 21 decks +10% synergy
Cabal Ritual
13% of 308 decks +8% synergy
Culling the Weak
12% of 308 decks +9% synergy
Terminate
12% of 232 decks -9% synergy
Malakir Rebirth
11% of 295 decks +2% synergy
Imp's Mischief
10% of 308 decks +7% synergy
Defile
9% of 306 decks +5% synergy
Deflecting Swat
8% of 244 decks -8% synergy
Bedevil
8% of 231 decks -6% synergy
Deadly Rollick
7% of 295 decks -3% synergy
Deadly Dispute
7% of 273 decks -5% synergy
Rakdos Charm
6% of 232 decks -8% synergy
Consuming Corruption
6% of 67 decks +4% synergy
Eviscerator's Insight
6% of 68 decks +4% synergy
Sorceries
Reshape
47% of 15 decks +45% synergy
Fabricate
47% of 15 decks +41% synergy
Kodama's Reach
44% of 16 decks +12% synergy
Cultivate
44% of 16 decks -2% synergy
Rampant Growth
38% of 16 decks +3% synergy
Farewell
28% of 18 decks +14% synergy
Decimate
27% of 11 decks +19% synergy
Agadeem's Awakening
24% of 295 decks +21% synergy
Sevinne's Reclamation
24% of 21 decks +17% synergy
Feed the Swarm
23% of 295 decks +5% synergy
Demonic Tutor
23% of 308 decks +1% synergy
Into the Fire
22% of 162 decks +21% synergy
Diabolic Intent
20% of 308 decks +11% synergy
Transmute Artifact
20% of 15 decks +19% synergy
Farseek
19% of 16 decks -15% synergy
Blasphemous Act
17% of 253 decks -17% synergy
Reanimate
17% of 308 decks +1% synergy
Late to Dinner
16% of 19 decks +15% synergy
Dread Return
15% of 308 decks +10% synergy
Gamble
15% of 253 decks +5% synergy
Idyllic Tutor
14% of 21 decks +9% synergy
Faithless Looting
12% of 253 decks -4% synergy
Sundering Eruption
12% of 59 decks +7% synergy
Jeska's Will
12% of 229 decks -6% synergy
Read the Bones
11% of 307 decks +3% synergy
Grim Tutor
11% of 308 decks +6% synergy
Victimize
11% of 308 decks -1% synergy
Insatiable Avarice
10% of 99 decks +5% synergy
Doomsday
10% of 308 decks +9% synergy
Diabolic Tutor
8% of 308 decks +2% synergy
Toxic Deluge
7% of 307 decks -10% synergy
Buried Alive
7% of 308 decks +2% synergy
Living Death
7% of 308 decks +2% synergy
Their Name Is Death
6% of 242 decks +5% synergy
Imperial Seal
6% of 308 decks +0% synergy
Beseech the Mirror
6% of 163 decks +2% synergy
Damnation
6% of 308 decks -2% synergy
Vandalblast
6% of 253 decks -11% synergy
Sinister Waltz
5% of 197 decks +4% synergy
Lively Dirge
5% of 99 decks +3% synergy
Utility Artifacts
Thopter Foundry
60% of 5 decks +58% synergy
Heartstone
59% of 357 decks +58% synergy
Tel-Jilad Stylus
54% of 357 decks +54% synergy
Time Sieve
43% of 7 decks +40% synergy
Thornbite Staff
36% of 357 decks +35% synergy
Phyrexian Altar
28% of 357 decks +24% synergy
Birthing Pod
25% of 16 decks +22% synergy
Aether Spellbomb
20% of 15 decks +19% synergy
Krark-Clan Ironworks
20% of 357 decks +19% synergy
Skullclamp
19% of 357 decks +6% synergy
Reito Lantern
18% of 357 decks +18% synergy
Lightning Greaves
18% of 357 decks -7% synergy
Mystic Forge
18% of 355 decks +15% synergy
Sensei's Divining Top
18% of 357 decks +12% synergy
Bolas's Citadel
17% of 306 decks +8% synergy
Soldevi Digger
16% of 357 decks +16% synergy
Teferi's Puzzle Box
15% of 357 decks +14% synergy
Sculpting Steel
13% of 357 decks +10% synergy
Aetherflux Reservoir
12% of 356 decks +8% synergy
Altar of Dementia
11% of 357 decks +8% synergy
Wishclaw Talisman
11% of 304 decks +5% synergy
The One Ring
11% of 232 decks +2% synergy
Cloud Key
10% of 357 decks +8% synergy
Moonsilver Key
10% of 319 decks +9% synergy
Grinding Station
10% of 357 decks +9% synergy
Crystal Ball
10% of 357 decks +9% synergy
Wayfarer's Bauble
9% of 357 decks -1% synergy
Desecrated Tomb
9% of 356 decks +8% synergy
Cloak and Dagger
8% of 357 decks +8% synergy
Blasting Station
8% of 357 decks +8% synergy
Swiftfoot Boots
8% of 356 decks -20% synergy
Staff of Domination
8% of 357 decks +6% synergy
Conjurer's Bauble
8% of 357 decks +7% synergy
Mishra's Bauble
8% of 357 decks +6% synergy
Codex Shredder
7% of 356 decks +6% synergy
Darksteel Pendant
7% of 357 decks +7% synergy
Palantír of Orthanc
7% of 203 decks +5% synergy
Soul-Guide Lantern
7% of 350 decks +6% synergy
Crucible of Worlds
7% of 357 decks +4% synergy
Panharmonicon
6% of 356 decks +2% synergy
Spine of Ish Sah
6% of 357 decks +5% synergy
Rings of Brighthearth
6% of 357 decks +4% synergy
Forsaken Monument
6% of 344 decks +4% synergy
Wand of Vertebrae
6% of 355 decks +6% synergy
Unwinding Clock
6% of 356 decks +3% synergy
Shriekhorn
6% of 357 decks +6% synergy
Scrabbling Claws
6% of 357 decks +5% synergy
Expedition Map
6% of 357 decks +2% synergy
Ghoulcaller's Bell
5% of 356 decks +5% synergy
Relic of Progenitus
5% of 357 decks +5% synergy
Enchantments
Smothering Tithe
29% of 21 decks +4% synergy
Rhystic Study
27% of 15 decks -1% synergy
Goblin Bombardment
26% of 253 decks +20% synergy
Sylvan Library
25% of 16 decks +13% synergy
Impact Tremors
20% of 253 decks +11% synergy
Power Artifact
20% of 15 decks +20% synergy
Doubling Season
19% of 16 decks +10% synergy
Teleportation Circle
16% of 19 decks +12% synergy
Braid of Fire
15% of 253 decks +14% synergy
Enduring Renewal
14% of 21 decks +14% synergy
Land Tax
14% of 21 decks +8% synergy
Animate Dead
13% of 308 decks +4% synergy
Mana Echoes
11% of 253 decks +10% synergy
Tortured Existence
11% of 308 decks +10% synergy
Agent of the Iron Throne
10% of 258 decks +8% synergy
Phyrexian Arena
10% of 308 decks -5% synergy
Necropotence
9% of 308 decks +4% synergy
Chthonian Nightmare
8% of 80 decks +5% synergy
Thran Vigil
7% of 222 decks +6% synergy
Grave Pact
6% of 308 decks +2% synergy
Necromancy
6% of 308 decks +3% synergy
Black Market
6% of 308 decks +2% synergy
Underworld Breach
6% of 249 decks -0% synergy
Phyrexian Reclamation
6% of 308 decks +2% synergy
Black Market Connections
6% of 258 decks -5% synergy
Bastion of Remembrance
5% of 295 decks -1% synergy
Planeswalkers
Tezzeret the Seeker
40% of 15 decks +37% synergy
Ugin, the Ineffable
5% of 355 decks +3% synergy
Utility Lands
Seat of the Synod
60% of 15 decks +54% synergy
Buried Ruin
54% of 356 decks +49% synergy
Vault of Whispers
50% of 308 decks +45% synergy
Great Furnace
45% of 253 decks +39% synergy
Zhalfirin Void
44% of 356 decks +44% synergy
Inventors' Fair
38% of 356 decks +34% synergy
Urborg, Tomb of Yawgmoth
37% of 357 decks +27% synergy
Academy Ruins
33% of 15 decks +29% synergy
Ancient Tomb
32% of 357 decks +22% synergy
Bojuka Bog
26% of 308 decks -4% synergy
Nykthos, Shrine to Nyx
24% of 356 decks +19% synergy
Ancient Den
24% of 21 decks +19% synergy
Phyrexian Tower
22% of 308 decks +14% synergy
Cabal Coffers
21% of 308 decks +10% synergy
Tolaria West
20% of 15 decks +19% synergy
Cephalid Coliseum
20% of 15 decks +17% synergy
Tree of Tales
19% of 16 decks +17% synergy
Eiganjo, Seat of the Empire
17% of 18 decks +8% synergy
Spinerock Knoll
16% of 253 decks +12% synergy
Urza's Saga
16% of 324 decks +9% synergy
Homeward Path
16% of 356 decks +14% synergy
Takenuma, Abandoned Mire
14% of 267 decks +4% synergy
Tomb Fortress
12% of 242 decks +11% synergy
Darksteel Citadel
12% of 357 decks +8% synergy
Dakmor Salvage
11% of 308 decks +9% synergy
Fomori Vault
11% of 93 decks +9% synergy
Treasure Vault
10% of 320 decks +8% synergy
Drownyard Temple
10% of 356 decks +9% synergy
Reliquary Tower
10% of 357 decks -20% synergy
High Market
9% of 357 decks +6% synergy
Three Tree City
9% of 56 decks -1% synergy
Temple of the False God
8% of 357 decks -2% synergy
War Room
8% of 329 decks +1% synergy
Emergence Zone
7% of 355 decks +5% synergy
Cabal Stronghold
7% of 307 decks +3% synergy
Spymaster's Vault
6% of 80 decks +2% synergy
Urza's Power Plant
5% of 357 decks +4% synergy
Urza's Mine
5% of 357 decks +4% synergy
Urza's Tower
5% of 357 decks +4% synergy
Witch's Cottage
5% of 304 decks +2% synergy
Mana Artifacts
Sol Ring
93% of 357 decks +9% synergy
Talisman of Hierarchy
60% of 5 decks +36% synergy
Dimir Signet
57% of 7 decks +28% synergy
Talisman of Dominance
57% of 7 decks +26% synergy
Rakdos Signet
52% of 232 decks +23% synergy
Talisman of Conviction
50% of 10 decks +27% synergy
Arcane Signet
47% of 353 decks -25% synergy
Boros Signet
40% of 10 decks +17% synergy
Talisman of Progress
38% of 8 decks +15% synergy
Azorius Signet
38% of 8 decks +12% synergy
Gruul Signet
27% of 11 decks +15% synergy
Mind Stone
20% of 357 decks +3% synergy
Talisman of Indulgence
19% of 232 decks -8% synergy
Thran Turbine
16% of 357 decks +16% synergy
Mana Crypt
15% of 357 decks +6% synergy
Mana Vault
13% of 357 decks +6% synergy
Lotus Petal
11% of 357 decks +4% synergy
Fellwar Stone
11% of 357 decks -10% synergy
Jeweled Lotus
11% of 329 decks +5% synergy
Basalt Monolith
10% of 357 decks +7% synergy
Thought Vessel
8% of 356 decks -8% synergy
Chromatic Star
8% of 357 decks +7% synergy
Mox Opal
8% of 357 decks +3% synergy
Thran Dynamo
8% of 357 decks +3% synergy
Sceptre of Eternal Glory
7% of 285 decks +6% synergy
Mox Amber
7% of 356 decks +3% synergy
Chromatic Sphere
7% of 357 decks +7% synergy
Chrome Mox
7% of 357 decks +0% synergy
Grim Monolith
6% of 357 decks +4% synergy
Gilded Lotus
6% of 357 decks +2% synergy
Liquimetal Torque
6% of 324 decks +2% synergy
Cursed Mirror
5% of 226 decks +0% synergy
Commander's Sphere
5% of 356 decks -10% synergy
Lands
Yavimaya Coast
100% of 3 decks +73% synergy
Underground River
71% of 7 decks +52% synergy
Battlefield Forge
70% of 10 decks +44% synergy
Command Tower
69% of 356 decks -5% synergy
Stomping Ground
64% of 11 decks +22% synergy
Blood Crypt
63% of 232 decks +24% synergy
Hallowed Fountain
62% of 8 decks +22% synergy
Shipwreck Marsh
60% of 5 decks +41% synergy
Shivan Reef
60% of 5 decks +33% synergy
Sacred Foundry
60% of 10 decks +24% synergy
Steam Vents
60% of 5 decks +21% synergy
Dragonskull Summit
59% of 232 decks +28% synergy
Smoldering Marsh
57% of 232 decks +25% synergy
Graven Cairns
55% of 232 decks +47% synergy
Temple of Malice
54% of 232 decks +40% synergy
Luxury Suite
53% of 232 decks +27% synergy
Llanowar Wastes
50% of 6 decks +24% synergy
Overgrown Tomb
50% of 6 decks +8% synergy
Temple of Deceit
43% of 7 decks +27% synergy
Drowned Catacomb
43% of 7 decks +17% synergy
Watery Grave
43% of 7 decks +2% synergy
Sunbaked Canyon
40% of 10 decks +35% synergy
Needleverge Pathway
40% of 10 decks +31% synergy
Rugged Prairie
40% of 10 decks +29% synergy
Spectator Seating
40% of 10 decks +15% synergy
Clifftop Retreat
40% of 10 decks +11% synergy
Glacial Fortress
38% of 8 decks +12% synergy
Fire-Lit Thicket
36% of 11 decks +32% synergy
Temple of Abandon
36% of 11 decks +23% synergy
Karplusan Forest
36% of 11 decks +19% synergy
Sulfurous Springs
31% of 232 decks +11% synergy
Sundown Pass
30% of 10 decks +15% synergy
Bloodstained Mire
30% of 357 decks +20% synergy
Kazandu Refuge
27% of 11 decks +25% synergy
Gruul Turf
27% of 11 decks +11% synergy
Spire Garden
27% of 11 decks +3% synergy
Rakdos Carnarium
27% of 232 decks +12% synergy
Foreboding Ruins
27% of 232 decks +11% synergy
Blightstep Pathway
27% of 207 decks +17% synergy
Crystal Grotto
25% of 298 decks +24% synergy
Haunted Ridge
24% of 200 decks +8% synergy
Shadowblood Ridge
23% of 232 decks +11% synergy
Raucous Theater
21% of 76 decks +8% synergy
Tainted Peak
20% of 232 decks +10% synergy
Marsh Flats
17% of 357 decks +6% synergy
Cavern of Souls
17% of 356 decks +10% synergy
Polluted Delta
16% of 357 decks +5% synergy
Path of Ancestry
16% of 356 decks -5% synergy
The Grey Havens
15% of 203 decks +13% synergy
Badlands
15% of 232 decks +1% synergy