Prowling Geistcatcher + Saffi Eriksdotter + Ashnod's Altar

Prowling Geistcatcher
Saffi Eriksdotter
Ashnod's Altar

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

Karador, Ghost Chieftain
0.17% of 5430 decks 9 decks
Othelm, Sigardian Outcast // Wernog, Rider's Chaplain
0.55% of 916 decks 5 decks
Kenrith, the Returned King
0.01% of 21730 decks 2 decks
Reyhan, Last of the Abzan // Yoshimaru, Ever Faithful
0.11% of 1755 decks 2 decks
Thalia and The Gitrog Monster
0.01% of 12840 decks 1 decks
Ishai, Ojutai Dragonspeaker // Reyhan, Last of the Abzan
0.06% of 1572 decks 1 decks
Ghave, Guru of Spores
0.02% of 6440 decks 1 decks
New Cards
Enduring Innocence
100% of 3 decks +89% synergy
High Synergy Cards
Carrion Feeder
81% of 21 decks +76% synergy
Reveillark
76% of 21 decks +74% synergy
Karmic Guide
76% of 21 decks +72% synergy
Viscera Seer
76% of 21 decks +67% synergy
Altar of Dementia
62% of 21 decks +59% synergy
Spore Frog
52% of 21 decks +50% synergy
Renegade Rallier
48% of 21 decks +47% synergy
Eternal Witness
67% of 21 decks +46% synergy
Zulaport Cutthroat
52% of 21 decks +43% synergy
Body Launderer
43% of 21 decks +42% synergy
Top Cards
Sakura-Tribe Elder
52% of 21 decks +34% synergy
Syr Konrad, the Grim
48% of 21 decks +39% synergy
Victimize
48% of 21 decks +36% synergy
Swords to Plowshares
48% of 21 decks -15% synergy
Grisly Salvage
43% of 21 decks +38% synergy
Pitiless Plunderer
43% of 21 decks +35% synergy
Cruel Celebrant
43% of 21 decks +34% synergy
Haywire Mite
40% of 20 decks +36% synergy
Bartolomé del Presidio
38% of 13 decks +32% synergy
Meren of Clan Nel Toth
38% of 21 decks +35% synergy
Creatures
Rottenmouth Viper
100% of 3 decks +97% synergy
Boggart Trawler
100% of 3 decks +95% synergy
Warren Soultrader
100% of 3 decks +93% synergy
Marionette Apprentice
100% of 3 decks +93% synergy
Accursed Marauder
100% of 3 decks +91% synergy
Grist, Voracious Larva
60% of 5 decks +57% synergy
Wight of the Reliquary
60% of 5 decks +52% synergy
Sand Scout
50% of 6 decks +49% synergy
Sun Titan
38% of 21 decks +28% synergy
Elas il-Kor, Sadistic Pilgrim
38% of 21 decks +27% synergy
Blood Artist
38% of 21 decks +26% synergy
Avacyn's Pilgrim
38% of 21 decks +23% synergy
Golgari Grave-Troll
33% of 21 decks +32% synergy
Protean Hulk
33% of 21 decks +32% synergy
Satyr Wayfinder
33% of 21 decks +31% synergy
Woe Strider
33% of 21 decks +31% synergy
Wood Elves
33% of 21 decks +27% synergy
Stinkweed Imp
29% of 21 decks +27% synergy
World Shaper
29% of 21 decks +25% synergy
Yawgmoth, Thran Physician
29% of 21 decks +25% synergy
Midnight Reaper
29% of 21 decks +25% synergy
Grim Haruspex
29% of 21 decks +25% synergy
Solemn Simulacrum
29% of 21 decks +15% synergy
Boromir, Warden of the Tower
25% of 16 decks +19% synergy
Gravebreaker Lamia
24% of 21 decks +23% synergy
Fiend Hunter
24% of 21 decks +23% synergy
Pawn of Ulamog
24% of 21 decks +22% synergy
Priest of Forgotten Gods
24% of 21 decks +22% synergy
Old Stickfingers
24% of 21 decks +21% synergy
Stitcher's Supplier
24% of 21 decks +21% synergy
Ravenous Chupacabra
24% of 21 decks +20% synergy
Sheoldred, Whispering One
24% of 21 decks +19% synergy
Bloom Tender
24% of 21 decks +16% synergy
Reclamation Sage
24% of 21 decks +13% synergy
Elves of Deep Shadow
24% of 21 decks +13% synergy
Birds of Paradise
24% of 21 decks -3% synergy
Loran of the Third Path
20% of 20 decks +13% synergy
Hermit Druid
19% of 21 decks +18% synergy
Golgari Thug
19% of 21 decks +18% synergy
Massacre Girl
19% of 21 decks +17% synergy
Good-Fortune Unicorn
19% of 21 decks +16% synergy
Fauna Shaman
19% of 21 decks +16% synergy
Acidic Slime
19% of 21 decks +15% synergy
Plaguecrafter
19% of 21 decks +14% synergy
Morbid Opportunist
19% of 21 decks +14% synergy
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19% of 21 decks +13% synergy
Braids, Arisen Nightmare
19% of 21 decks +11% synergy
Llanowar Elves
19% of 21 decks -2% synergy
Delighted Halfling
19% of 16 decks +5% synergy
Cankerbloom
18% of 17 decks +11% synergy
Instants
Flare of Malice
60% of 5 decks +57% synergy
Flare of Fortitude
60% of 5 decks +54% synergy
Anguished Unmaking
29% of 21 decks +4% synergy
Beast Within
29% of 21 decks -10% synergy
Malakir Rebirth
24% of 21 decks +16% synergy
Village Rites
24% of 21 decks +14% synergy
Deadly Dispute
24% of 21 decks +13% synergy
Path to Exile
24% of 21 decks -22% synergy
Veil of Summer
19% of 21 decks +13% synergy
Entomb
19% of 21 decks +12% synergy
Abrupt Decay
19% of 21 decks +9% synergy
Generous Gift
19% of 21 decks -7% synergy
Teferi's Protection
14% of 21 decks -6% synergy
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38% of 21 decks +33% synergy
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38% of 21 decks +22% synergy
Damn
38% of 21 decks +22% synergy
Rise of the Witch-king
31% of 16 decks +25% synergy
Squirming Emergence
31% of 13 decks +27% synergy
Life from the Loam
29% of 21 decks +25% synergy
Cultivate
29% of 21 decks -18% synergy
Persist
24% of 21 decks +21% synergy
Eldritch Evolution
24% of 21 decks +19% synergy
Buried Alive
24% of 21 decks +18% synergy
Eerie Ultimatum
24% of 21 decks +11% synergy
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24% of 21 decks -8% synergy
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24% of 21 decks -10% synergy
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19% of 21 decks +6% synergy
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14% of 21 decks +11% synergy
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14% of 21 decks +3% synergy
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33% of 21 decks +21% synergy
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19% of 21 decks +18% synergy
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14% of 21 decks +12% synergy
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57% of 21 decks +27% synergy
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Indatha Triome
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38% of 21 decks +30% synergy
Path of Ancestry
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38% of 21 decks +12% synergy
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38% of 21 decks +11% synergy
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33% of 21 decks +22% synergy
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33% of 21 decks +22% synergy
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29% of 21 decks +18% synergy
Brushland
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Reflecting Pool
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Twilight Mire
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Concealed Courtyard
19% of 21 decks +13% synergy
Deathcap Glade
19% of 21 decks +5% synergy
Terramorphic Expanse
19% of 21 decks +3% synergy
Blooming Marsh
14% of 21 decks +10% synergy
Blossoming Sands
14% of 21 decks +8% synergy
Mana Confluence
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City of Brass
14% of 21 decks +6% synergy
Jungle Hollow
14% of 21 decks +5% synergy
Wooded Foothills
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Bloodstained Mire
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Flooded Strand
14% of 21 decks +4% synergy
Fetid Heath
14% of 21 decks +3% synergy
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Overgrown Farmland
14% of 21 decks -2% synergy
Temple of Malady
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Golgari Rot Farm
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