Prowling Geistcatcher + Felidar Guardian + Ashnod's Altar

Prowling Geistcatcher
Felidar Guardian
Ashnod's Altar

Requires
Prowling Geistcatcher must be on the battlefield. Felidar Guardian must be in hand. Ashnod's Altar must be on the battlefield. Mana needed: 3
Steps
  1. Cast Felidar Guardian by paying 3.
  2. Felidar Guardian enters the battlefield, triggering its ability, targeting Prowling Geistcatcher.
  3. Holding priority, activate Ashnod's Altar by sacrificing Felidar Guardian, adding .
  4. Prowling Geistcatcher triggers, exiling Felidar Guardian from your graveyard.
  5. Resolve the Felidar Guardian trigger from 2, blinking Prowling Geistcatcher.
  6. Prowling Geistcatcher leaves the battlefield, returning Felidar Guardian from exile to the battlefield.
  7. Repeat from step 2.
Results
Infinite blinking. Infinite colorless mana. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Alesha, Who Smiles at Death
0.17% of 5907 decks 10 decks
Nikara, Lair Scavenger // Yannik, Scavenging Sentinel
0.23% of 866 decks 2 decks
Karador, Ghost Chieftain
0.04% of 5430 decks 2 decks
Malik, Grim Manipulator
0.07% of 2670 decks 2 decks
Atraxa, Grand Unifier
0.01% of 14631 decks 1 decks
Shilgengar, Sire of Famine
0.03% of 3814 decks 1 decks
Queza, Augur of Agonies
0.02% of 6473 decks 1 decks
Firja, Judge of Valor
0.09% of 1168 decks 1 decks
Nalia de'Arnise
0.03% of 2996 decks 1 decks
Kenrith, the Returned King
0.00% of 21730 decks 1 decks
Tana, the Bloodsower // Tymna the Weaver
0.03% of 2874 decks 1 decks
Rasaad yn Bashir // Agent of the Iron Throne
16.67% of 6 decks 1 decks
Abdel Adrian, Gorion's Ward // Agent of the Iron Throne
0.24% of 421 decks 1 decks
Jodah, the Unifier
0.01% of 18024 decks 1 decks
Livio, Oathsworn Sentinel // Nadier, Agent of the Duskenel
2.78% of 36 decks 1 decks
Bane, Lord of Darkness
0.05% of 2122 decks 1 decks
High Synergy Cards
Karmic Guide
79% of 28 decks +74% synergy
Kiki-Jiki, Mirror Breaker
73% of 15 decks +70% synergy
Altar of Dementia
64% of 28 decks +62% synergy
Marionette Apprentice
67% of 6 decks +59% synergy
Reveillark
57% of 28 decks +55% synergy
Eternal Witness
75% of 8 decks +54% synergy
Faithless Looting
67% of 15 decks +50% synergy
Fiend Hunter
50% of 28 decks +49% synergy
Goblin Bombardment
53% of 15 decks +47% synergy
Viscera Seer
54% of 28 decks +44% synergy
Top Cards
Swords to Plowshares
57% of 28 decks -6% synergy
Sakura-Tribe Elder
50% of 8 decks +32% synergy
Cultivate
50% of 8 decks +4% synergy
Phyrexian Altar
46% of 28 decks +42% synergy
Sun Titan
46% of 28 decks +36% synergy
Zulaport Cutthroat
43% of 28 decks +33% synergy
Cathartic Reunion
40% of 15 decks +36% synergy
Animate Dead
39% of 28 decks +30% synergy
Solemn Simulacrum
39% of 28 decks +25% synergy
Buried Alive
36% of 28 decks +30% synergy
Creatures
Imperial Recruiter
60% of 15 decks +54% synergy
Witch Enchanter
43% of 7 decks +33% synergy
Renegade Rallier
38% of 8 decks +37% synergy
Saffi Eriksdotter
38% of 8 decks +36% synergy
Old Stickfingers
38% of 8 decks +35% synergy
Emiel the Blessed
38% of 8 decks +34% synergy
Farhaven Elf
38% of 8 decks +34% synergy
Wood Elves
38% of 8 decks +31% synergy
Reclamation Sage
38% of 8 decks +27% synergy
Avacyn's Pilgrim
38% of 8 decks +23% synergy
Llanowar Elves
38% of 8 decks +17% synergy
Cruel Celebrant
36% of 28 decks +27% synergy
Blood Artist
36% of 28 decks +24% synergy
Seasoned Pyromancer
33% of 15 decks +33% synergy
Dockside Extortionist
33% of 15 decks +21% synergy
Delney, Streetwise Lookout
30% of 10 decks +25% synergy
Elas il-Kor, Sadistic Pilgrim
28% of 25 decks +17% synergy
Abdel Adrian, Gorion's Ward
27% of 26 decks +26% synergy
Master of Cruelties
27% of 15 decks +24% synergy
Anger
27% of 15 decks +21% synergy
Loran of the Third Path
26% of 23 decks +19% synergy
Ravenous Chupacabra
25% of 28 decks +21% synergy
Grim Haruspex
25% of 28 decks +21% synergy
Carrion Feeder
25% of 28 decks +20% synergy
Pitiless Plunderer
25% of 28 decks +17% synergy
Restoration Angel
21% of 28 decks +19% synergy
Stitcher's Supplier
21% of 28 decks +19% synergy
Recruiter of the Guard
21% of 28 decks +18% synergy
Yawgmoth, Thran Physician
21% of 28 decks +18% synergy
Selfless Spirit
21% of 28 decks +17% synergy
Corpse Knight
21% of 28 decks +16% synergy
Murderous Redcap
20% of 15 decks +19% synergy
Lotho, Corrupt Shirriff
20% of 15 decks +5% synergy
Ruthless Technomancer
19% of 26 decks +17% synergy
Eldrazi Displacer
18% of 28 decks +16% synergy
Charming Prince
18% of 28 decks +16% synergy
Vile Entomber
18% of 28 decks +16% synergy
Priest of Fell Rites
18% of 28 decks +15% synergy
Welcoming Vampire
18% of 28 decks +12% synergy
Esper Sentinel
18% of 28 decks -3% synergy
Preston, the Vanisher
15% of 20 decks +14% synergy
Skyclave Apparition
14% of 28 decks +11% synergy
Yahenni, Undying Partisan
14% of 28 decks +11% synergy
Knight of the White Orchid
14% of 28 decks +8% synergy
Grand Abolisher
14% of 28 decks +5% synergy
Gray Merchant of Asphodel
14% of 28 decks +5% synergy
Activated Sleeper
12% of 25 decks +12% synergy
Body Launderer
12% of 26 decks +11% synergy
Faceless Butcher
11% of 28 decks +11% synergy
Callous Bloodmage
11% of 28 decks +10% synergy
Instants
Ephemerate
36% of 28 decks +30% synergy
Path to Exile
36% of 28 decks -10% synergy
Entomb
29% of 28 decks +21% synergy
Thrill of Possibility
27% of 15 decks +16% synergy
Cloudshift
21% of 28 decks +18% synergy
Crackling Doom
20% of 15 decks +12% synergy
Bedevil
20% of 15 decks +6% synergy
Boros Charm
20% of 15 decks -5% synergy
Dark Ritual
18% of 28 decks -5% synergy
Anguished Unmaking
18% of 28 decks -6% synergy
Eerie Interlude
14% of 28 decks +10% synergy
Utter End
14% of 28 decks +7% synergy
Village Rites
14% of 28 decks +4% synergy
Deadly Dispute
14% of 28 decks +3% synergy
Vampiric Tutor
14% of 28 decks -4% synergy
Teferi's Protection
14% of 28 decks -6% synergy
Culling the Weak
11% of 28 decks +7% synergy
Malakir Rebirth
11% of 28 decks +2% synergy
Generous Gift
11% of 28 decks -15% synergy
Sorceries
Eerie Ultimatum
38% of 8 decks +25% synergy
Blasphemous Act
33% of 15 decks -0% synergy
Reanimate
32% of 28 decks +16% synergy
Demonic Tutor
32% of 28 decks +10% synergy
Dread Return
21% of 28 decks +16% synergy
Victimize
21% of 28 decks +10% synergy
Gamble
20% of 15 decks +10% synergy
Living Death
18% of 28 decks +13% synergy
Diabolic Intent
18% of 28 decks +9% synergy
Toxic Deluge
18% of 28 decks +0% synergy
Unburial Rites
14% of 28 decks +12% synergy
Unmarked Grave
14% of 28 decks +12% synergy
Dusk // Dawn
14% of 28 decks +11% synergy
Slaughter the Strong
11% of 28 decks +9% synergy
Persist
11% of 28 decks +8% synergy
Sign in Blood
11% of 28 decks +1% synergy
Austere Command
11% of 28 decks -2% synergy
Damn
11% of 28 decks -6% synergy
Feed the Swarm
11% of 28 decks -7% synergy
Utility Artifacts
Birthing Pod
38% of 8 decks +35% synergy
Skullclamp
32% of 28 decks +20% synergy
Lightning Greaves
32% of 28 decks +7% synergy
Swiftfoot Boots
18% of 28 decks -10% synergy
Blasting Station
14% of 28 decks +14% synergy
Panharmonicon
14% of 28 decks +10% synergy
Nim Deathmantle
11% of 28 decks +10% synergy
Enchantments
Fable of the Mirror-Breaker
23% of 13 decks +21% synergy
Phyrexian Arena
21% of 28 decks +6% synergy
Bastion of Remembrance
18% of 28 decks +12% synergy
Dance of the Dead
14% of 28 decks +13% synergy
Teleportation Circle
14% of 28 decks +10% synergy
Smothering Tithe
14% of 28 decks -11% synergy
Gift of Immortality
11% of 28 decks +9% synergy
Reconnaissance
11% of 28 decks +9% synergy
Cathars' Crusade
11% of 28 decks +5% synergy
Planeswalkers
Liliana, Dreadhorde General
11% of 28 decks +7% synergy
Utility Lands
High Market
32% of 28 decks +29% synergy
Bojuka Bog
32% of 28 decks +2% synergy
Hanweir Battlements
27% of 15 decks +25% synergy
Phyrexian Tower
25% of 28 decks +16% synergy
Reliquary Tower
21% of 28 decks -8% synergy
Urborg, Tomb of Yawgmoth
18% of 28 decks +8% synergy
Takenuma, Abandoned Mire
15% of 26 decks +5% synergy
Geier Reach Sanitarium
14% of 28 decks +11% synergy
Vault of the Archangel
14% of 28 decks +3% synergy
Rogue's Passage
14% of 28 decks -5% synergy
Access Tunnel
11% of 28 decks +9% synergy
Ghost Quarter
11% of 28 decks +8% synergy
Secluded Steppe
11% of 28 decks +8% synergy
Mortuary Mire
11% of 28 decks +6% synergy
Castle Locthwain
11% of 28 decks +5% synergy
Mana Artifacts
Sol Ring
89% of 28 decks +5% synergy
Arcane Signet
86% of 28 decks +14% synergy
Rakdos Signet
33% of 15 decks +4% synergy
Orzhov Signet
32% of 28 decks +5% synergy
Boros Signet
27% of 15 decks +3% synergy
Talisman of Hierarchy
25% of 28 decks +1% synergy
Fellwar Stone
21% of 28 decks +0% synergy
Talisman of Conviction
20% of 15 decks -3% synergy
Commander's Sphere
18% of 28 decks +3% synergy
Chromatic Lantern
14% of 28 decks +5% synergy
Thought Vessel
14% of 28 decks -3% synergy
Worn Powerstone
11% of 28 decks +8% synergy
Lands
Command Tower
96% of 28 decks +23% synergy
Sacred Foundry
67% of 15 decks +30% synergy
Blood Crypt
67% of 15 decks +28% synergy
Arcane Sanctum
60% of 5 decks +32% synergy
Luxury Suite
53% of 15 decks +27% synergy
Selesnya Sanctuary
50% of 8 decks +36% synergy
Golgari Rot Farm
50% of 8 decks +32% synergy
Llanowar Wastes
50% of 8 decks +24% synergy
Sandsteppe Citadel
50% of 8 decks +24% synergy
Spectator Seating
47% of 15 decks +22% synergy
Savai Triome
47% of 15 decks +20% synergy
Dragonskull Summit
47% of 15 decks +16% synergy
Godless Shrine
46% of 28 decks +6% synergy
Exotic Orchard
43% of 28 decks +7% synergy
Battlefield Forge
40% of 15 decks +14% synergy
Vault of Champions
39% of 28 decks +14% synergy
Temple of Malady
38% of 8 decks +21% synergy
Woodland Cemetery
38% of 8 decks +10% synergy
Canopy Vista
38% of 8 decks +1% synergy
Caves of Koilos
36% of 28 decks +8% synergy
Nomad Outpost
33% of 15 decks +6% synergy
Clifftop Retreat
33% of 15 decks +5% synergy
Marsh Flats
32% of 28 decks +21% synergy
Orzhov Basilica
32% of 28 decks +16% synergy
Shadowy Backstreet
30% of 10 decks +17% synergy
Evolving Wilds
29% of 28 decks +8% synergy
Path of Ancestry
29% of 28 decks +7% synergy
Rakdos Carnarium
27% of 15 decks +12% synergy
Sulfurous Springs
27% of 15 decks +6% synergy
Arid Mesa
25% of 28 decks +14% synergy
Isolated Chapel
25% of 28 decks -3% synergy
Bloodstained Mire
21% of 28 decks +11% synergy
Terramorphic Expanse
21% of 28 decks +6% synergy
Boros Garrison
20% of 15 decks +5% synergy
Smoldering Marsh
20% of 15 decks -13% synergy
Tainted Field
18% of 28 decks +5% synergy
Concealed Courtyard
14% of 28 decks +9% synergy
Mana Confluence
14% of 28 decks +7% synergy
Scoured Barrens
14% of 28 decks +5% synergy
Temple of Silence
14% of 28 decks -4% synergy
City of Brass
11% of 28 decks +3% synergy
Brightclimb Pathway
11% of 28 decks +1% synergy
Fetid Heath
11% of 28 decks -0% synergy
Shineshadow Snarl
11% of 28 decks -2% synergy
Myriad Landscape
11% of 28 decks -9% synergy