Prowling Geistcatcher + Karmic Guide + Ashnod's Altar

Prowling Geistcatcher
Karmic Guide
Ashnod's Altar

Requires
Prowling Geistcatcher must be on the battlefield. Karmic Guide must be on the battlefield. Ashnod's Altar must be on the battlefield.
Steps
  1. Activate Ashnod's Altar by sacrificing Karmic Guide, adding .
  2. When Karmic Guide dies, Prowling Geistcatcher's first ability triggers, exiling Karmic Guide from your graveyard.
  3. Activate Ashnod's Altar by sacrificing Prowling Geistcatcher, adding .
  4. When Prowling Geistcatcher dies, its second ability triggers, returning Karmic Guide from exile to the battlefield.
  5. When Karmic Guide enters the battlefield, it triggers, returning Prowling Geistcatcher from your graveyard to the battlefield.
  6. Repeat.
Results
Infinite colorless mana. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Alesha, Who Smiles at Death
0.39% of 5878 decks 23 decks
Teysa Karlov
0.13% of 15204 decks 20 decks
Karador, Ghost Chieftain
0.16% of 5461 decks 9 decks
Othelm, Sigardian Outcast // Wernog, Rider's Chaplain
0.66% of 913 decks 6 decks
Bane, Lord of Darkness
0.24% of 2097 decks 5 decks
Extus, Oriq Overlord
0.08% of 5233 decks 4 decks
Bartolomé del Presidio
0.35% of 1137 decks 4 decks
Liesa, Forgotten Archangel
0.17% of 2379 decks 4 decks
Elas il-Kor, Sadistic Pilgrim
0.05% of 6467 decks 3 decks
Kenrith, the Returned King
0.01% of 21550 decks 3 decks
Queen Marchesa
0.02% of 12395 decks 3 decks
Elenda, the Dusk Rose
0.06% of 5257 decks 3 decks
Ghave, Guru of Spores
0.03% of 6438 decks 2 decks
Athreos, Shroud-Veiled
0.14% of 1438 decks 2 decks
Reyhan, Last of the Abzan // Yoshimaru, Ever Faithful
0.12% of 1729 decks 2 decks
Malik, Grim Manipulator
0.08% of 2587 decks 2 decks
Teysa, Orzhov Scion
0.07% of 2670 decks 2 decks
Sefris of the Hidden Ways
0.02% of 8726 decks 2 decks
High Synergy Cards
Goblin Bombardment
86% of 37 decks +80% synergy
Viscera Seer
81% of 124 decks +72% synergy
Indebted Spirit
67% of 9 decks +65% synergy
Reveillark
63% of 124 decks +61% synergy
Saffi Eriksdotter
59% of 27 decks +58% synergy
Zulaport Cutthroat
65% of 124 decks +55% synergy
Faithless Looting
68% of 37 decks +51% synergy
Cruel Celebrant
57% of 124 decks +49% synergy
Skullclamp
59% of 124 decks +46% synergy
Carrion Feeder
51% of 124 decks +46% synergy
Top Cards
Swords to Plowshares
67% of 124 decks +4% synergy
Eternal Witness
63% of 27 decks +42% synergy
Blood Artist
57% of 124 decks +46% synergy
Marionette Apprentice
50% of 22 decks +42% synergy
Pitiless Plunderer
48% of 124 decks +41% synergy
Mulldrifter
46% of 13 decks +40% synergy
Sakura-Tribe Elder
44% of 27 decks +26% synergy
Phyrexian Altar
44% of 124 decks +39% synergy
Murderous Redcap
43% of 37 decks +42% synergy
Grim Haruspex
43% of 124 decks +39% synergy
Creatures
Imperial Recruiter
59% of 37 decks +53% synergy
Elas il-Kor, Sadistic Pilgrim
42% of 119 decks +30% synergy
Sun Titan
41% of 124 decks +31% synergy
Warren Soultrader
41% of 22 decks +33% synergy
Solemn Simulacrum
40% of 124 decks +25% synergy
Chasm Skulker
38% of 13 decks +34% synergy
Kiki-Jiki, Mirror Breaker
38% of 37 decks +34% synergy
Master of Cruelties
35% of 37 decks +32% synergy
Mayhem Devil
35% of 37 decks +25% synergy
Protean Hulk
33% of 27 decks +32% synergy
Anger
32% of 37 decks +26% synergy
Midnight Reaper
32% of 124 decks +28% synergy
Bartolomé del Presidio
31% of 55 decks +24% synergy
Pawn of Ulamog
31% of 124 decks +28% synergy
Morbid Opportunist
31% of 124 decks +25% synergy
Renegade Rallier
30% of 27 decks +29% synergy
Wood Elves
30% of 27 decks +23% synergy
Yahenni, Undying Partisan
29% of 124 decks +26% synergy
Fiend Hunter
28% of 124 decks +27% synergy
Yawgmoth, Thran Physician
28% of 124 decks +25% synergy
Elenda, the Dusk Rose
28% of 124 decks +22% synergy
Welcoming Vampire
27% of 124 decks +21% synergy
Golgari Grave-Troll
26% of 27 decks +24% synergy
Spore Frog
26% of 27 decks +23% synergy
Meren of Clan Nel Toth
26% of 27 decks +23% synergy
Reassembling Skeleton
26% of 124 decks +22% synergy
Woe Strider
25% of 124 decks +23% synergy
Witch Enchanter
25% of 24 decks +15% synergy
Corpse Knight
24% of 124 decks +18% synergy
Body Launderer
24% of 122 decks +23% synergy
Body Double
23% of 13 decks +22% synergy
Evil Twin
23% of 13 decks +22% synergy
Glen Elendra Archmage
23% of 13 decks +21% synergy
Haywire Mite
23% of 26 decks +19% synergy
Soulherder
23% of 13 decks +18% synergy
Professional Face-Breaker
23% of 35 decks +14% synergy
Teysa Karlov
23% of 124 decks +18% synergy
Satyr Wayfinder
22% of 27 decks +20% synergy
World Shaper
22% of 27 decks +19% synergy
Champion of Lambholt
22% of 27 decks +15% synergy
Reclamation Sage
22% of 27 decks +11% synergy
Birds of Paradise
22% of 27 decks -5% synergy
Luminous Broodmoth
22% of 124 decks +20% synergy
Judith, the Scourge Diva
22% of 37 decks +20% synergy
Dockside Extortionist
22% of 37 decks +9% synergy
Braids, Arisen Nightmare
21% of 119 decks +13% synergy
Mirkwood Bats
21% of 68 decks +8% synergy
Syr Konrad, the Grim
20% of 124 decks +11% synergy
Thalia and The Gitrog Monster
20% of 20 decks +15% synergy
Drivnod, Carnage Dominus
20% of 87 decks +16% synergy
Instants
Grisly Salvage
37% of 27 decks +32% synergy
Path to Exile
36% of 124 decks -9% synergy
Village Rites
34% of 124 decks +24% synergy
Thrill of Possibility
32% of 37 decks +22% synergy
Anguished Unmaking
31% of 124 decks +6% synergy
Beast Within
30% of 27 decks -9% synergy
Deadly Dispute
29% of 124 decks +18% synergy
Boros Charm
24% of 37 decks -1% synergy
Generous Gift
24% of 124 decks -1% synergy
An Offer You Can't Refuse
23% of 13 decks +3% synergy
Entomb
23% of 124 decks +15% synergy
Plumb the Forbidden
22% of 124 decks +19% synergy
Chaos Warp
22% of 37 decks -10% synergy
Corrupted Conviction
21% of 76 decks +15% synergy
Malakir Rebirth
21% of 124 decks +13% synergy
Despark
20% of 124 decks +4% synergy
Wear // Tear
19% of 37 decks +11% synergy
Dark Ritual
15% of 124 decks -7% synergy
Veil of Summer
15% of 27 decks +9% synergy
Return to Nature
15% of 27 decks +8% synergy
Abrupt Decay
15% of 27 decks +4% synergy
Fracture
14% of 124 decks +6% synergy
Crackling Doom
14% of 37 decks +6% synergy
Rakdos Charm
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Teferi's Protection
13% of 124 decks -7% synergy
Afterlife Insurance
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Harrow
11% of 27 decks +1% synergy
Crop Rotation
11% of 27 decks +1% synergy
Assassin's Trophy
11% of 27 decks -19% synergy
Tibalt's Trickery
11% of 37 decks +5% synergy
Body Count
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10% of 124 decks +3% synergy
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10% of 30 decks +6% synergy
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8% of 37 decks -6% synergy
Deflecting Swat
8% of 37 decks -8% synergy
Enlightened Tutor
8% of 124 decks -10% synergy
Rally the Ancestors
7% of 124 decks +7% synergy
Costly Plunder
7% of 124 decks +6% synergy
Hagra Mauling
7% of 124 decks +5% synergy
Heliod's Intervention
7% of 124 decks +4% synergy
Ephemerate
7% of 124 decks +1% synergy
Mortify
7% of 124 decks -5% synergy
Call the Coppercoats
6% of 124 decks +2% synergy
Eerie Interlude
6% of 124 decks +2% synergy
Sorceries
Victimize
39% of 124 decks +27% synergy
Cathartic Reunion
38% of 37 decks +34% synergy
Damn
35% of 124 decks +19% synergy
Rise of the Witch-king
31% of 16 decks +25% synergy
Squirming Emergence
31% of 13 decks +27% synergy
Cultivate
30% of 27 decks -17% synergy
Buried Alive
28% of 124 decks +23% synergy
Life from the Loam
26% of 27 decks +22% synergy
Diabolic Intent
25% of 124 decks +16% synergy
Reanimate
25% of 124 decks +10% synergy
Tormenting Voice
24% of 37 decks +21% synergy
Demonic Tutor
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Eerie Ultimatum
22% of 27 decks +10% synergy
Farseek
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Mythos of Snapdax
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Living Death
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Traverse the Ulvenwald
19% of 27 decks +18% synergy
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16% of 37 decks +6% synergy
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16% of 37 decks -0% synergy
Rite of Oblivion
16% of 124 decks +13% synergy
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Dread Return
15% of 124 decks +10% synergy
Rampant Growth
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Toxic Deluge
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Agadeem's Awakening
14% of 124 decks +10% synergy
Sevinne's Reclamation
14% of 124 decks +7% synergy
Dusk // Dawn
13% of 124 decks +9% synergy
Diabolic Tutor
12% of 124 decks +6% synergy
Vindicate
11% of 124 decks +4% synergy
Dig Up
11% of 27 decks +8% synergy
Culling Ritual
11% of 27 decks +0% synergy
Jeska's Will
11% of 37 decks -7% synergy
Ruinous Ultimatum
11% of 37 decks -7% synergy
Unearth
10% of 124 decks +7% synergy
Sign in Blood
10% of 124 decks +1% synergy
Expel the Interlopers
9% of 57 decks +7% synergy
Thrilling Discovery
8% of 37 decks +6% synergy
Twinflame
8% of 37 decks +5% synergy
The Battle of Bywater
8% of 63 decks +5% synergy
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7% of 122 decks -6% synergy
Unburial Rites
7% of 124 decks +5% synergy
Unmarked Grave
7% of 124 decks +5% synergy
Vanquish the Horde
6% of 124 decks +3% synergy
Night's Whisper
6% of 124 decks -3% synergy
Bone Shards
6% of 124 decks +4% synergy
Persist
6% of 124 decks +3% synergy
Rise of the Dark Realms
6% of 124 decks +2% synergy
Utility Artifacts
Altar of Dementia
39% of 124 decks +36% synergy
Lightning Greaves
26% of 124 decks +0% synergy
Conduit of Worlds
24% of 21 decks +17% synergy
Birthing Pod
19% of 27 decks +16% synergy
Swiftfoot Boots
15% of 124 decks -13% synergy
Nim Deathmantle
11% of 124 decks +11% synergy
Key to the City
10% of 124 decks +9% synergy
Bolas's Citadel
10% of 124 decks +0% synergy
Blasting Station
9% of 124 decks +8% synergy
Wayfarer's Bauble
7% of 124 decks -3% synergy
Norn's Wellspring
7% of 90 decks +6% synergy
Spawning Pit
6% of 124 decks +6% synergy
Moonsilver Key
6% of 124 decks +4% synergy
Enchantments
Bastion of Remembrance
38% of 124 decks +32% synergy
Animate Dead
28% of 124 decks +19% synergy
Teferi's Ageless Insight
23% of 13 decks +18% synergy
Smothering Tithe
20% of 124 decks -5% synergy
Ripples of Undeath
18% of 17 decks +11% synergy
Impact Tremors
16% of 37 decks +7% synergy
Dictate of Erebos
16% of 124 decks +12% synergy
Ulvenwald Mysteries
15% of 27 decks +14% synergy
Pattern of Rebirth
15% of 27 decks +14% synergy
Survival of the Fittest
15% of 27 decks +13% synergy
Aura Shards
15% of 27 decks +6% synergy
Fanatical Devotion
15% of 124 decks +14% synergy
The Meathook Massacre
14% of 124 decks +9% synergy
Phyrexian Arena
14% of 124 decks -1% synergy
Necromancy
11% of 124 decks +8% synergy
Descendants' Path
11% of 27 decks +10% synergy
Master Chef
11% of 27 decks +10% synergy
Journey to Eternity
11% of 27 decks +8% synergy
Moldervine Reclamation
11% of 27 decks +2% synergy
Phyrexian Reclamation
10% of 124 decks +7% synergy
Case of the Stashed Skeleton
10% of 40 decks +9% synergy
Skrelv's Hive
10% of 90 decks +7% synergy
Black Market Connections
10% of 120 decks -1% synergy
Dark Prophecy
10% of 124 decks +9% synergy
Reconnaissance
10% of 124 decks +8% synergy
Life Insurance
9% of 122 decks +7% synergy
Gift of Immortality
9% of 124 decks +7% synergy
Grave Pact
9% of 124 decks +4% synergy
Fable of the Mirror-Breaker
9% of 35 decks +6% synergy
Kaya's Ghostform
7% of 124 decks +3% synergy
Angelic Renewal
6% of 124 decks +6% synergy
Vampiric Rites
6% of 124 decks +4% synergy
Dreadhorde Invasion
6% of 124 decks +4% synergy
Black Market
6% of 124 decks +2% synergy
Anointed Procession
6% of 124 decks -2% synergy
Dance of the Dead
6% of 124 decks +4% synergy
Bitterblossom
6% of 124 decks +1% synergy
Planeswalkers
Liliana, Dreadhorde General
12% of 124 decks +9% synergy
Nahiri, the Harbinger
8% of 37 decks +7% synergy
Tevesh Szat, Doom of Fools
6% of 124 decks +4% synergy
Elspeth, Sun's Champion
6% of 124 decks +1% synergy
Utility Lands
Bojuka Bog
44% of 124 decks +14% synergy
High Market
40% of 124 decks +36% synergy
Phyrexian Tower
35% of 124 decks +27% synergy
Spymaster's Vault
32% of 22 decks +28% synergy
Urborg, Tomb of Yawgmoth
24% of 124 decks +14% synergy
Takenuma, Abandoned Mire
23% of 122 decks +12% synergy
Reliquary Tower
23% of 124 decks -7% synergy
Gavony Township
19% of 27 decks +9% synergy
Hanweir Battlements
16% of 37 decks +15% synergy
Castle Locthwain
16% of 124 decks +11% synergy
Eiganjo, Seat of the Empire
13% of 122 decks +4% synergy
Vault of the Archangel
12% of 124 decks +1% synergy
Westvale Abbey
11% of 124 decks +9% synergy
Rogue's Passage
11% of 124 decks -8% synergy
Grim Backwoods
11% of 27 decks +7% synergy
Mosswort Bridge
11% of 27 decks +1% synergy
Boseiju, Who Endures
11% of 27 decks -8% synergy
Ancient Tomb
10% of 124 decks -1% synergy
Cabal Coffers
10% of 124 decks -1% synergy
Sokenzan, Crucible of Defiance
9% of 35 decks +4% synergy
Kher Keep
8% of 37 decks +5% synergy
Geier Reach Sanitarium
8% of 124 decks +5% synergy
Castle Ardenvale
7% of 124 decks +2% synergy
Restless Fortress
7% of 57 decks +4% synergy
Access Tunnel
6% of 124 decks +4% synergy
Shizo, Death's Storehouse
6% of 124 decks +2% synergy
Maze of Ith
6% of 124 decks +3% synergy
Temple of the False God
6% of 124 decks -4% synergy
Mana Artifacts
Sol Ring
94% of 124 decks +9% synergy
Arcane Signet
85% of 124 decks +13% synergy
Talisman of Hierarchy
52% of 124 decks +28% synergy
Orzhov Signet
52% of 124 decks +25% synergy
Rakdos Signet
49% of 37 decks +19% synergy
Boros Signet
41% of 37 decks +17% synergy
Talisman of Dominance
38% of 13 decks +7% synergy
Talisman of Conviction
38% of 37 decks +15% synergy
Talisman of Indulgence
27% of 37 decks +1% synergy
Hourglass of the Lost
23% of 13 decks +22% synergy
Dimir Signet
23% of 13 decks -7% synergy
Fellwar Stone
22% of 124 decks +1% synergy
Mind Stone
20% of 124 decks +3% synergy
Thought Vessel
10% of 124 decks -6% synergy
Commander's Sphere
7% of 124 decks -8% synergy
Lands
Command Tower
90% of 124 decks +16% synergy
Blood Crypt
65% of 37 decks +26% synergy
Caves of Koilos
60% of 124 decks +32% synergy
Isolated Chapel
56% of 124 decks +29% synergy
Battlefield Forge
54% of 37 decks +29% synergy
Dragonskull Summit
54% of 37 decks +24% synergy
Arcane Sanctum
54% of 13 decks +26% synergy
Godless Shrine
53% of 124 decks +12% synergy
Sandsteppe Citadel
52% of 27 decks +26% synergy
Woodland Cemetery
52% of 27 decks +24% synergy
Savai Triome
51% of 37 decks +24% synergy
Sacred Foundry
51% of 37 decks +15% synergy
Nomad Outpost
49% of 37 decks +21% synergy
Sea of Clouds
46% of 13 decks +20% synergy
Canopy Vista
44% of 27 decks +9% synergy
Clifftop Retreat
43% of 37 decks +15% synergy
Exotic Orchard
43% of 124 decks +7% synergy
Lush Portico
40% of 10 decks +28% synergy
Watery Grave
38% of 13 decks -2% synergy
Vault of Champions
37% of 124 decks +11% synergy
Sulfurous Springs
35% of 37 decks +15% synergy
Marsh Flats
35% of 124 decks +23% synergy
Tainted Field
34% of 124 decks +21% synergy
Elegant Parlor
33% of 12 decks +24% synergy
Llanowar Wastes
33% of 27 decks +8% synergy
Clearwater Pathway
31% of 13 decks +21% synergy
Morphic Pool
31% of 13 decks +5% synergy
Prairie Stream
31% of 13 decks -3% synergy
Sunken Hollow
31% of 13 decks -4% synergy
Hallowed Fountain
31% of 13 decks -10% synergy
Underground Mortuary
30% of 10 decks +13% synergy
Spectator Seating
30% of 37 decks +5% synergy
Smoldering Marsh
30% of 37 decks -3% synergy
Bountiful Promenade
30% of 27 decks +5% synergy
Indatha Triome
30% of 27 decks -2% synergy
Overgrown Tomb
30% of 27 decks -13% synergy
Shineshadow Snarl
27% of 124 decks +15% synergy
Shattered Sanctum
27% of 124 decks +14% synergy
Haunted Ridge
27% of 37 decks +11% synergy
Luxury Suite
27% of 37 decks +1% synergy
Temple of Silence
27% of 124 decks +9% synergy
Murmuring Bosk
26% of 27 decks +18% synergy
Temple Garden
26% of 27 decks -15% synergy
Fetid Heath
25% of 124 decks +14% synergy
Raucous Theater
25% of 12 decks +12% synergy
Shadowy Backstreet
25% of 40 decks +12% synergy
Temple of Malice
24% of 37 decks +10% synergy
Orzhov Basilica
24% of 124 decks +8% synergy
Shipwreck Marsh
23% of 13 decks +4% synergy
Evolving Wilds
23% of 124 decks +2% synergy