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.
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
5.89% of 3563 decks 210 decks
Imotekh the Stormlord
0.72% of 6844 decks 49 decks
Omarthis, Ghostfire Initiate
0.53% of 2249 decks 12 decks
Mikaeus, the Unhallowed
0.78% of 1542 decks 12 decks
Shirei, Shizo's Caretaker
0.10% of 5927 decks 6 decks
Sharuum the Hegemon
0.13% of 2372 decks 3 decks
Bjorna, Nightfall Alchemist // Othelm, Sigardian Outcast
1.07% of 280 decks 3 decks
Herigast, Erupting Nullkite
0.11% of 2725 decks 3 decks
Abdel Adrian, Gorion's Ward // Street Urchin
1.10% of 273 decks 3 decks
K'rrik, Son of Yawgmoth
0.01% of 15499 decks 2 decks
Kozilek, the Great Distortion
0.03% of 5858 decks 2 decks
Purphoros, God of the Forge
0.05% of 3986 decks 2 decks
Karn, Silver Golem
0.19% of 1043 decks 2 decks
Kibo, Uktabi Prince
0.01% of 10099 decks 1 decks
Totentanz, Swarm Piper
0.03% of 3166 decks 1 decks
Slimefoot and Squee
0.01% of 8744 decks 1 decks
Gerrard, Weatherlight Hero
0.22% of 453 decks 1 decks
Roxanne, Starfall Savant
0.02% of 5754 decks 1 decks
New Cards
Voice of Victory
50% of 2 decks +45% synergy
Ugin, Eye of the Storms
4% of 23 decks +3% synergy
High Synergy Cards
Murderous Redcap
89% of 220 decks +88% synergy
Priest of Urabrask
79% of 241 decks +79% synergy
Kiki-Jiki, Mirror Breaker
78% of 241 decks +75% synergy
Skirk Prospector
73% of 241 decks +70% synergy
Siege-Gang Commander
72% of 241 decks +70% synergy
Viscera Seer
75% of 300 decks +66% synergy
Zealous Conscripts
66% of 241 decks +65% synergy
Goblin Engineer
67% of 241 decks +64% synergy
Sling-Gang Lieutenant
61% of 300 decks +61% synergy
Goblin Welder
62% of 241 decks +60% synergy
Top Cards
Pitiless Plunderer
65% of 300 decks +57% synergy
Zulaport Cutthroat
65% of 300 decks +56% synergy
Gray Merchant of Asphodel
59% of 300 decks +50% synergy
The Cauldron of Eternity
59% of 300 decks +58% synergy
Etherium Sculptor
58% of 12 decks +53% synergy
Fabricate
58% of 12 decks +53% synergy
Deathbringer Thoctar
58% of 220 decks +58% synergy
Solemn Simulacrum
58% of 350 decks +44% synergy
Emrakul's Hatcher
57% of 241 decks +57% synergy
Iron Myr
57% of 241 decks +55% synergy
Game Changers
Enlightened Tutor
50% of 20 decks +33% synergy
Mystical Tutor
33% of 12 decks +19% synergy
Ancient Tomb
31% of 350 decks +21% synergy
Smothering Tithe
30% of 20 decks +6% synergy
Demonic Tutor
26% of 300 decks +5% synergy
Force of Will
25% of 12 decks +14% synergy
Bolas's Citadel
19% of 300 decks +10% synergy
Mana Vault
14% of 350 decks +8% synergy
Ad Nauseam
7% of 300 decks +5% synergy
Grim Monolith
5% of 350 decks +3% synergy
Creatures
Noble Hierarch
75% of 4 decks +59% synergy
Lonis, Cryptozoologist
60% of 5 decks +58% synergy
Anger
57% of 241 decks +51% synergy
Pawn of Ulamog
54% of 300 decks +52% synergy
Leaden Myr
52% of 300 decks +50% synergy
Chainer, Nightmare Adept
50% of 220 decks +46% synergy
Karmic Guide
50% of 20 decks +46% synergy
Phyrexian Metamorph
50% of 12 decks +43% synergy
Woe Strider
50% of 300 decks +48% synergy
Marionette Master
50% of 300 decks +47% synergy
Priest of Gix
49% of 300 decks +48% synergy
Epitaph Golem
48% of 350 decks +48% synergy
Junk Diver
48% of 350 decks +47% synergy
Lightning Crafter
48% of 241 decks +48% synergy
Palladium Myr
46% of 350 decks +44% synergy
Meteor Golem
46% of 350 decks +44% synergy
Goblin Sharpshooter
45% of 241 decks +44% synergy
Treasonous Ogre
45% of 241 decks +43% synergy
Crypt Ghast
44% of 300 decks +39% synergy
Goblin Trashmaster
44% of 241 decks +43% synergy
Imperial Recruiter
42% of 241 decks +36% synergy
Felidar Guardian
40% of 20 decks +38% synergy
Puppeteer Clique
39% of 300 decks +38% synergy
Hoverstone Pilgrim
39% of 272 decks +39% synergy
Eternal Witness
39% of 18 decks +19% synergy
Metallic Mimic
37% of 350 decks +36% synergy
Tomb Trawler
37% of 214 decks +37% synergy
Plaguecrafter
37% of 300 decks +32% synergy
Goblin Matron
35% of 241 decks +33% synergy
Barkform Harvester
35% of 173 decks +35% synergy
Eldrazi Displacer
35% of 20 decks +34% synergy
Reveillark
35% of 20 decks +33% synergy
Duplicant
35% of 350 decks +34% synergy
Dimir House Guard
34% of 300 decks +33% synergy
Phyrexian Delver
34% of 300 decks +33% synergy
Warren Soultrader
34% of 165 decks +29% synergy
Master Transmuter
33% of 12 decks +32% synergy
Sai, Master Thopterist
33% of 12 decks +30% synergy
Birds of Paradise
33% of 18 decks +6% synergy
Faceless Butcher
33% of 300 decks +33% synergy
Furystoke Giant
33% of 241 decks +33% synergy
Burnished Hart
33% of 350 decks +29% synergy
Body Snatcher
32% of 300 decks +32% synergy
Mad Auntie
31% of 300 decks +30% synergy
Moggcatcher
30% of 241 decks +30% synergy
Myr Retriever
30% of 350 decks +28% synergy
Recruiter of the Guard
30% of 20 decks +27% synergy
Ravenous Chupacabra
30% of 300 decks +26% synergy
Sun Titan
30% of 20 decks +21% synergy
Blood Artist
29% of 300 decks +17% synergy
Instants
Lim-Dûl's Vault
60% of 5 decks +56% synergy
Beast Within
50% of 18 decks +13% synergy
Swords to Plowshares
50% of 20 decks -13% synergy
Valakut Awakening
49% of 241 decks +44% synergy
Whir of Invention
42% of 12 decks +39% synergy
Path to Exile
40% of 20 decks -7% synergy
Dovin's Veto
38% of 8 decks +19% synergy
Generous Gift
35% of 20 decks +10% synergy
Heroic Intervention
33% of 18 decks +4% synergy
Counterspell
33% of 12 decks -9% synergy
Silence
30% of 20 decks +24% synergy
Dark Ritual
29% of 300 decks +6% synergy
Worldly Tutor
28% of 18 decks +14% synergy
Ephemerate
25% of 20 decks +19% synergy
Pact of Negation
25% of 12 decks +18% synergy
Mana Drain
25% of 12 decks +10% synergy
Swan Song
25% of 12 decks +9% synergy
An Offer You Can't Refuse
25% of 12 decks +3% synergy
Fire Prophecy
21% of 241 decks +21% synergy
Entomb
20% of 300 decks +13% synergy
Vampiric Tutor
20% of 300 decks +3% synergy
Chord of Calling
17% of 18 decks +11% synergy
Chaos Warp
16% of 241 decks -16% synergy
Cabal Ritual
16% of 300 decks +11% synergy
Withering Torment
16% of 122 decks +8% synergy
Culling the Weak
15% of 300 decks +12% synergy
Teferi's Protection
15% of 20 decks -4% synergy
Volcanic Spite
15% of 241 decks +15% synergy
Imp's Mischief
13% of 300 decks +10% synergy
Terminate
12% of 220 decks -8% synergy
Fell the Profane
12% of 165 decks +3% synergy
Malakir Rebirth
11% of 300 decks +3% synergy
Defile
10% of 300 decks +6% synergy
Deadly Rollick
9% of 300 decks -3% synergy
Deflecting Swat
8% of 241 decks -8% synergy
Pyroblast
8% of 241 decks +2% synergy
Bedevil
8% of 220 decks -6% synergy
Rakdos Charm
7% of 220 decks -8% synergy
Village Rites
7% of 300 decks -3% synergy
Go for the Throat
6% of 300 decks -1% synergy
Snuff Out
6% of 300 decks +4% synergy
Deadly Dispute
6% of 300 decks -5% synergy
Red Elemental Blast
6% of 241 decks -0% synergy
Withering Boon
6% of 300 decks +5% synergy
Sorceries
Kodama's Reach
39% of 18 decks +8% synergy
Cultivate
39% of 18 decks -6% synergy
Reshape
33% of 12 decks +32% synergy
Rampant Growth
33% of 18 decks -1% synergy
Sevinne's Reclamation
30% of 20 decks +23% synergy
Feed the Swarm
25% of 300 decks +7% synergy
Diabolic Intent
21% of 300 decks +13% synergy
Agadeem's Awakening
20% of 300 decks +17% synergy
Idyllic Tutor
20% of 20 decks +16% synergy
Reanimate
20% of 300 decks +3% synergy
Dread Return
17% of 300 decks +12% synergy
Sylvan Tutor
17% of 18 decks +16% synergy
Explosive Vegetation
17% of 18 decks +13% synergy
Farseek
17% of 18 decks -18% synergy
Into the Fire
15% of 241 decks +15% synergy
Blasphemous Act
15% of 241 decks -18% synergy
Farewell
15% of 20 decks +2% synergy
Gamble
15% of 241 decks +5% synergy
Faithless Looting
13% of 241 decks -4% synergy
Jeska's Will
13% of 241 decks -4% synergy
Grim Tutor
13% of 300 decks +8% synergy
Victimize
13% of 300 decks +1% synergy
Read the Bones
11% of 300 decks +4% synergy
Buried Alive
10% of 300 decks +4% synergy
Doomsday
9% of 300 decks +9% synergy
Insatiable Avarice
9% of 187 decks +6% synergy
Toxic Deluge
9% of 300 decks -9% synergy
Diabolic Tutor
8% of 300 decks +2% synergy
Living Death
7% of 300 decks +2% synergy
Imperial Seal
7% of 300 decks +1% synergy
Vandalblast
7% of 241 decks -9% synergy
Beseech the Mirror
5% of 262 decks +2% synergy
Sign in Blood
5% of 300 decks -4% synergy
Utility Artifacts
Thopter Foundry
75% of 4 decks +73% synergy
Time Sieve
60% of 5 decks +57% synergy
Heartstone
57% of 350 decks +56% synergy
Tel-Jilad Stylus
51% of 350 decks +51% synergy
Thornbite Staff
34% of 350 decks +34% synergy
Phyrexian Altar
30% of 350 decks +26% synergy
Aether Spellbomb
25% of 12 decks +24% synergy
Birthing Pod
22% of 18 decks +20% synergy
Krark-Clan Ironworks
22% of 350 decks +21% synergy
Mystic Forge
20% of 350 decks +17% synergy
Mind Stone
20% of 350 decks +3% synergy
Sensei's Divining Top
19% of 350 decks +14% synergy
Skullclamp
18% of 350 decks +6% synergy
Lightning Greaves
17% of 350 decks -8% synergy
Reito Lantern
16% of 350 decks +16% synergy
Soldevi Digger
16% of 350 decks +16% synergy
Teferi's Puzzle Box
15% of 350 decks +14% synergy
Lotus Petal
13% of 350 decks +6% synergy
Sculpting Steel
13% of 350 decks +11% synergy
Wishclaw Talisman
13% of 300 decks +7% synergy
Altar of Dementia
13% of 350 decks +10% synergy
Aetherflux Reservoir
12% of 350 decks +9% synergy
Cloud Key
12% of 350 decks +10% synergy
Grinding Station
10% of 350 decks +10% synergy
The One Ring
9% of 350 decks +1% synergy
Wayfarer's Bauble
9% of 350 decks +0% synergy
Desecrated Tomb
9% of 350 decks +9% synergy
Blasting Station
9% of 350 decks +9% synergy
Mishra's Bauble
9% of 350 decks +8% synergy
Moonsilver Key
9% of 350 decks +8% synergy
Conjurer's Bauble
9% of 350 decks +8% synergy
Chromatic Star
9% of 350 decks +8% synergy
Cloak and Dagger
8% of 350 decks +8% synergy
Crystal Ball
8% of 350 decks +8% synergy
Chromatic Sphere
8% of 350 decks +7% synergy
Codex Shredder
8% of 350 decks +7% synergy
Swiftfoot Boots
8% of 350 decks -20% synergy
Darksteel Pendant
7% of 350 decks +7% synergy
Staff of Domination
7% of 350 decks +5% synergy
Jeweled Lotus
7% of 350 decks +3% synergy
Soul-Guide Lantern
7% of 350 decks +6% synergy
Scrabbling Claws
7% of 350 decks +6% synergy
Forsaken Monument
7% of 350 decks +5% synergy
Spine of Ish Sah
6% of 350 decks +5% synergy
Shriekhorn
6% of 350 decks +6% synergy
Wand of Vertebrae
6% of 350 decks +6% synergy
Crucible of Worlds
6% of 350 decks +4% synergy
Expedition Map
6% of 350 decks +3% synergy
Ghoulcaller's Bell
6% of 350 decks +5% synergy
Relic of Progenitus
6% of 350 decks +5% synergy
Enchantments
Intruder Alarm
33% of 12 decks +31% synergy
Sylvan Library
28% of 18 decks +17% synergy
Goblin Bombardment
27% of 241 decks +21% synergy
Rhystic Study
25% of 12 decks -2% synergy
Doubling Season
22% of 18 decks +13% synergy
Impact Tremors
20% of 241 decks +10% synergy
Greater Good
17% of 18 decks +12% synergy
Parallel Lives
17% of 18 decks +10% synergy
Braid of Fire
15% of 241 decks +14% synergy
Animate Dead
15% of 300 decks +6% synergy
Tortured Existence
13% of 300 decks +11% synergy
Mana Echoes
12% of 241 decks +11% synergy
Phyrexian Arena
10% of 300 decks -6% synergy
Necropotence
10% of 300 decks +4% synergy
Agent of the Iron Throne
8% of 300 decks +6% synergy
Thran Vigil
7% of 300 decks +6% synergy
Necromancy
7% of 300 decks +3% synergy
Underworld Breach
6% of 241 decks +0% synergy
Phyrexian Reclamation
6% of 300 decks +3% synergy
Grave Pact
6% of 300 decks +1% synergy
Chthonian Nightmare
6% of 171 decks +4% synergy
Black Market
6% of 300 decks +1% synergy
Planeswalkers
Tezzeret the Seeker
25% of 12 decks +23% synergy
Ugin, the Ineffable
7% of 350 decks +5% synergy
Utility Lands
Seat of the Synod
58% of 12 decks +52% synergy
Buried Ruin
56% of 350 decks +51% synergy
Vault of Whispers
48% of 300 decks +44% synergy
Great Furnace
43% of 241 decks +38% synergy
Zhalfirin Void
43% of 350 decks +42% synergy
Inventors' Fair
37% of 350 decks +33% synergy
Urborg, Tomb of Yawgmoth
36% of 350 decks +27% synergy
Academy Ruins
33% of 12 decks +28% synergy
Bojuka Bog
27% of 300 decks -3% synergy
Ancient Den
25% of 20 decks +20% synergy
Cabal Coffers
25% of 300 decks +14% synergy
Nykthos, Shrine to Nyx
25% of 350 decks +19% synergy
Phyrexian Tower
23% of 300 decks +14% synergy
Tree of Tales
22% of 18 decks +20% synergy
Spinerock Knoll
17% of 241 decks +13% synergy
Homeward Path
16% of 350 decks +14% synergy
Urza's Saga
15% of 350 decks +8% synergy
Takenuma, Abandoned Mire
14% of 300 decks +5% synergy
Darksteel Citadel
13% of 350 decks +9% synergy
Dakmor Salvage
12% of 300 decks +10% synergy
Drownyard Temple
11% of 350 decks +10% synergy
Reliquary Tower
11% of 350 decks -19% synergy
Tomb Fortress
10% of 300 decks +9% synergy
Treasure Vault
9% of 350 decks +7% synergy
Temple of the False God
9% of 350 decks -0% synergy
War Room
9% of 350 decks +2% synergy
Cabal Stronghold
8% of 300 decks +5% synergy
High Market
8% of 350 decks +5% synergy
Emergence Zone
7% of 350 decks +5% synergy
Fomori Vault
7% of 213 decks +6% synergy
Urza's Power Plant
6% of 350 decks +4% synergy
Urza's Mine
6% of 350 decks +4% synergy
Urza's Tower
6% of 350 decks +4% synergy
Witch's Cottage
6% of 300 decks +2% synergy
Mana Artifacts
Sol Ring
93% of 350 decks +9% synergy
Dimir Signet
80% of 5 decks +51% synergy
Talisman of Dominance
80% of 5 decks +48% synergy
Talisman of Hierarchy
60% of 5 decks +35% synergy
Orzhov Signet
60% of 5 decks +33% synergy
Rakdos Signet
50% of 220 decks +22% synergy
Talisman of Conviction
50% of 10 decks +26% synergy
Arcane Signet
48% of 350 decks -24% synergy
Boros Signet
40% of 10 decks +18% synergy
Azorius Signet
38% of 8 decks +12% synergy
Gruul Signet
27% of 11 decks +16% synergy
Talisman of Indulgence
19% of 220 decks -8% synergy
Thran Turbine
16% of 350 decks +16% synergy
Fellwar Stone
10% of 350 decks -11% synergy
Mana Crypt
10% of 350 decks +4% synergy
Thran Dynamo
9% of 350 decks +4% synergy
Basalt Monolith
9% of 350 decks +6% synergy
Mox Opal
9% of 350 decks +4% synergy
Thought Vessel
8% of 350 decks -9% synergy
Mox Amber
8% of 350 decks +4% synergy
Chrome Mox
7% of 350 decks +1% synergy
Sceptre of Eternal Glory
6% of 350 decks +5% synergy
Gilded Lotus
6% of 350 decks +2% synergy
Liquimetal Torque
5% of 350 decks +2% synergy
Vessel of Endless Rest
5% of 350 decks +5% synergy
Everflowing Chalice
5% of 350 decks +1% synergy
Lands
Yavimaya Coast
80% of 5 decks +53% synergy
Seaside Citadel
75% of 4 decks +49% synergy
Battlefield Forge
70% of 10 decks +44% synergy
Steam Vents
67% of 6 decks +28% synergy
Command Tower
66% of 350 decks -8% synergy
Blood Crypt
61% of 220 decks +23% synergy
Dragonskull Summit
60% of 220 decks +28% synergy
Watery Grave
60% of 5 decks +20% synergy
Smoldering Marsh
59% of 220 decks +26% synergy
Temple of Malice
58% of 220 decks +43% synergy
Shivan Reef
50% of 6 decks +22% synergy
Sacred Foundry
50% of 10 decks +15% synergy
Hallowed Fountain
50% of 8 decks +10% synergy
Graven Cairns
50% of 220 decks +41% synergy
Luxury Suite
48% of 220 decks +22% synergy
Temple of Abandon
45% of 11 decks +31% synergy
Stomping Ground
45% of 11 decks +5% synergy
Temple of Plenty
43% of 7 decks +29% synergy
Needleverge Pathway
40% of 10 decks +31% synergy
Spectator Seating
40% of 10 decks +15% synergy
Razortide Bridge
38% of 8 decks +31% synergy
Sulfurous Springs
31% of 220 decks +10% synergy
Sunbaked Canyon
30% of 10 decks +25% synergy
Rugged Prairie
30% of 10 decks +19% synergy
Sundown Pass
30% of 10 decks +15% synergy
Clifftop Retreat
30% of 10 decks -1% synergy
Bloodstained Mire
29% of 350 decks +19% synergy
Rakdos Carnarium
29% of 220 decks +15% synergy
Foreboding Ruins
29% of 220 decks +13% synergy
Fire-Lit Thicket
27% of 11 decks +23% synergy
Shadowblood Ridge
25% of 220 decks +12% synergy
Blightstep Pathway
23% of 220 decks +13% synergy
Tainted Peak
22% of 220 decks +11% synergy
Blazemire Verge
21% of 91 decks +10% synergy
Haunted Ridge
20% of 220 decks +4% synergy
Crystal Grotto
19% of 350 decks +19% synergy
Polluted Delta
16% of 350 decks +5% synergy
Path of Ancestry
16% of 350 decks -6% synergy
Marsh Flats
15% of 350 decks +4% synergy
Cavern of Souls
15% of 350 decks +7% synergy
Badlands
14% of 220 decks +0% synergy
Raucous Theater
13% of 156 decks +4% synergy
Exotic Orchard
12% of 350 decks -24% synergy
Scalding Tarn
11% of 350 decks +0% synergy
Wooded Foothills
11% of 350 decks +0% synergy
Blackcleave Cliffs
10% of 220 decks +4% synergy
Myriad Landscape
10% of 350 decks -8% synergy
The Grey Havens
10% of 332 decks +9% synergy
Plaza of Heroes
10% of 350 decks +7% synergy
Canyon Slough
10% of 220 decks +3% synergy