Athreos, Shroud-Veiled + Enduring Bondwarden + Ashnod's Altar

Athreos, Shroud-Veiled
Enduring Bondwarden
Ashnod's Altar

Requires
Athreos, Shroud-Veiled must be on the battlefield. Enduring Bondwarden must be on the battlefield. Ashnod's Altar must be on the battlefield. You control at least one other nontoken creature. Enduring Bondwarden has at least one coin counter on it.
Steps
  1. Activate Ashnod's Altar by sacrificing Enduring Bondwarden, adding .
  2. When Enduring Bondwarden dies, it and Athreos' third ability trigger.
  3. Resolve the Enduring Bondwarden trigger, putting all counters from it onto another nontoken creature you control.
  4. Resolve the Athreos trigger, returning Enduring Bondwarden from your graveyard to the battlefield.
  5. When Enduring Bondwarden enters the battlefield, its backup ability triggers, putting a +1/+1 counter on the creature who had a coin counter placed on it, and giving it the printed ability until end of turn.
  6. Activate Ashnod's Altar by sacrificing the nontoken creature with a coin counter on it, adding .
  7. When the creature dies, it and Athreos' third ability trigger.
  8. Resolve the creature's trigger, putting all counters from it onto Enduring Bondwarden .
  9. Resolve the Athreos trigger, returning the creature from your graveyard to the battlefield.
  10. Repeat.
Results
Infinite +1/+1 counters on target creature you control. Infinite colorless mana. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Athreos, Shroud-Veiled
1.45% of 1381 decks 20 decks
Felisa, Fang of Silverquill
0.19% of 1614 decks 3 decks
High Synergy Cards
Resourceful Defense
84% of 25 decks +83% synergy
Viscera Seer
68% of 25 decks +63% synergy
Ravenous Chupacabra
60% of 25 decks +58% synergy
Strionic Resonator
60% of 25 decks +57% synergy
Gray Merchant of Asphodel
60% of 25 decks +55% synergy
Solemn Simulacrum
68% of 25 decks +54% synergy
Elas il-Kor, Sadistic Pilgrim
56% of 25 decks +53% synergy
Damn
56% of 25 decks +52% synergy
Contractual Safeguard
52% of 25 decks +52% synergy
Path to Exile
72% of 25 decks +52% synergy
Top Cards
Swords to Plowshares
72% of 25 decks +43% synergy
Bartolomé del Presidio
50% of 18 decks +48% synergy
Village Rites
48% of 25 decks +43% synergy
Teysa Karlov
44% of 25 decks +43% synergy
Carrion Feeder
44% of 25 decks +41% synergy
Plaguecrafter
44% of 25 decks +41% synergy
Phyrexian Altar
44% of 25 decks +40% synergy
Mangara of Corondor
40% of 25 decks +40% synergy
Junji, the Midnight Sky
40% of 25 decks +39% synergy
Cruel Celebrant
40% of 25 decks +38% synergy
Creatures
Accursed Marauder
50% of 6 decks +44% synergy
Braids, Arisen Nightmare
40% of 25 decks +36% synergy
Claim Jumper
36% of 11 decks +35% synergy
Grim Haruspex
36% of 25 decks +34% synergy
Burnished Hart
36% of 25 decks +32% synergy
Blood Artist
36% of 25 decks +30% synergy
Loran of the Third Path
32% of 25 decks +29% synergy
Zulaport Cutthroat
32% of 25 decks +27% synergy
Carmen, Cruel Skymarcher
29% of 14 decks +27% synergy
Flickerwisp
28% of 25 decks +27% synergy
Kokusho, the Evening Star
28% of 25 decks +27% synergy
Drivnod, Carnage Dominus
28% of 25 decks +26% synergy
Elesh Norn, Mother of Machines
28% of 25 decks +26% synergy
Sun Titan
28% of 25 decks +23% synergy
Lotho, Corrupt Shirriff
26% of 23 decks +23% synergy
Ashen Rider
24% of 25 decks +24% synergy
Priest of Fell Rites
24% of 25 decks +23% synergy
Preston, the Vanisher
24% of 25 decks +23% synergy
Luminous Broodmoth
24% of 25 decks +23% synergy
Charming Prince
24% of 25 decks +23% synergy
Spirited Companion
24% of 25 decks +22% synergy
Massacre Wurm
24% of 25 decks +22% synergy
Pitiless Plunderer
24% of 25 decks +20% synergy
Star Pupil
20% of 25 decks +20% synergy
Ao, the Dawn Sky
20% of 25 decks +19% synergy
Puppeteer Clique
20% of 25 decks +19% synergy
Harvester of Souls
20% of 25 decks +19% synergy
Elenda, the Dusk Rose
20% of 25 decks +19% synergy
Corpse Knight
20% of 25 decks +19% synergy
Karmic Guide
20% of 25 decks +18% synergy
Ayli, Eternal Pilgrim
16% of 25 decks +16% synergy
Gonti, Lord of Luxury
16% of 25 decks +15% synergy
Yahenni, Undying Partisan
16% of 25 decks +14% synergy
Fleshbag Marauder
16% of 25 decks +14% synergy
Crypt Ghast
16% of 25 decks +14% synergy
Sheoldred, Whispering One
16% of 25 decks +13% synergy
Knight of the White Orchid
16% of 25 decks +13% synergy
Dauthi Voidwalker
16% of 25 decks +12% synergy
Esper Sentinel
16% of 25 decks +6% synergy
Denethor, Ruling Steward
14% of 21 decks +14% synergy
Spiteful Squad
12% of 25 decks +12% synergy
Nikara, Lair Scavenger
12% of 25 decks +12% synergy
Iron Apprentice
12% of 25 decks +12% synergy
Aron, Benalia's Ruin
12% of 25 decks +12% synergy
Callous Bloodmage
12% of 25 decks +12% synergy
Cavalier of Dawn
12% of 25 decks +12% synergy
Erebos, Bleak-Hearted
12% of 25 decks +11% synergy
Selfless Squire
12% of 25 decks +11% synergy
Sidisi, Undead Vizier
12% of 25 decks +11% synergy
Sepulchral Primordial
12% of 25 decks +11% synergy
Instants
Anguished Unmaking
40% of 25 decks +34% synergy
Fell the Profane
38% of 8 decks +31% synergy
Mortify
36% of 25 decks +33% synergy
Corrupted Conviction
32% of 25 decks +29% synergy
Generous Gift
28% of 25 decks +16% synergy
Final Showdown
27% of 11 decks +25% synergy
Utter End
24% of 25 decks +22% synergy
Fracture
24% of 25 decks +22% synergy
Despark
24% of 25 decks +20% synergy
Deadly Dispute
24% of 25 decks +18% synergy
Stroke of Midnight
20% of 20 decks +14% synergy
Enlightened Tutor
20% of 25 decks +12% synergy
Dark Ritual
20% of 25 decks +9% synergy
Teferi's Protection
16% of 25 decks +7% synergy
Vampiric Tutor
16% of 25 decks +7% synergy
Malakir Rebirth
12% of 25 decks +8% synergy
Sorceries
Kaya's Wrath
32% of 25 decks +31% synergy
Sign in Blood
32% of 25 decks +27% synergy
Reanimate
28% of 25 decks +20% synergy
Demonic Tutor
28% of 25 decks +16% synergy
Insatiable Avarice
27% of 11 decks +24% synergy
Read the Bones
24% of 25 decks +20% synergy
Vanquish the Horde
20% of 25 decks +18% synergy
Grim Tutor
20% of 25 decks +18% synergy
Wrath of God
20% of 25 decks +17% synergy
Diabolic Tutor
20% of 25 decks +17% synergy
Farewell
20% of 25 decks +14% synergy
Vindicate
16% of 25 decks +14% synergy
Night's Whisper
16% of 25 decks +11% synergy
Toxic Deluge
16% of 25 decks +7% synergy
End Hostilities
12% of 25 decks +12% synergy
Damning Verdict
12% of 25 decks +11% synergy
Merciless Eviction
12% of 25 decks +11% synergy
Idyllic Tutor
12% of 25 decks +10% synergy
Diabolic Intent
12% of 25 decks +7% synergy
Victimize
12% of 25 decks +6% synergy
Utility Artifacts
The Ozolith
36% of 25 decks +33% synergy
Skullclamp
28% of 25 decks +15% synergy
Altar of Dementia
20% of 25 decks +17% synergy
Lithoform Engine
16% of 25 decks +14% synergy
Panharmonicon
16% of 25 decks +12% synergy
Wayfarer's Bauble
16% of 25 decks +5% synergy
Helm of the Host
12% of 25 decks +9% synergy
Swiftfoot Boots
12% of 25 decks -16% synergy
Enchantments
Smothering Tithe
36% of 25 decks +24% synergy
Black Market
28% of 25 decks +26% synergy
Feast of the Victorious Dead
21% of 24 decks +20% synergy
Animate Dead
20% of 25 decks +15% synergy
Phyrexian Arena
20% of 25 decks +13% synergy
Land Tax
16% of 25 decks +13% synergy
Ghostly Prison
16% of 25 decks +11% synergy
Debtors' Knell
12% of 25 decks +12% synergy
Life Insurance
12% of 25 decks +12% synergy
Smuggler's Share
12% of 25 decks +11% synergy
Dictate of Erebos
12% of 25 decks +10% synergy
Blind Obedience
12% of 25 decks +9% synergy
Bastion of Remembrance
12% of 25 decks +9% synergy
Planeswalkers
Kaya the Inexorable
12% of 25 decks +11% synergy
The Eternal Wanderer
12% of 25 decks +10% synergy
Utility Lands
Phyrexian Tower
52% of 25 decks +48% synergy
High Market
40% of 25 decks +37% synergy
Nesting Grounds
32% of 25 decks +31% synergy
Bojuka Bog
32% of 25 decks +16% synergy
Reliquary Tower
28% of 25 decks -1% synergy
Urborg, Tomb of Yawgmoth
20% of 25 decks +10% synergy
Vault of the Archangel
16% of 25 decks +14% synergy
Eiganjo, Seat of the Empire
16% of 25 decks +12% synergy
Takenuma, Abandoned Mire
16% of 25 decks +10% synergy
Temple of the False God
16% of 25 decks +6% synergy
Westvale Abbey
12% of 25 decks +11% synergy
Castle Ardenvale
12% of 25 decks +10% synergy
Castle Locthwain
12% of 25 decks +9% synergy
Nykthos, Shrine to Nyx
12% of 25 decks +6% synergy
War Room
12% of 25 decks +5% synergy
Ancient Tomb
12% of 25 decks +1% synergy
Mana Artifacts
Sol Ring
96% of 25 decks +11% synergy
Arcane Signet
84% of 25 decks +12% synergy
Orzhov Signet
60% of 25 decks +54% synergy
Talisman of Hierarchy
52% of 25 decks +46% synergy
Fellwar Stone
36% of 25 decks +15% synergy
Commander's Sphere
28% of 25 decks +12% synergy
Mind Stone
28% of 25 decks +10% synergy
Thran Dynamo
12% of 25 decks +7% synergy
Chromatic Lantern
12% of 25 decks +2% synergy
Lands
Command Tower
96% of 25 decks +22% synergy
Isolated Chapel
72% of 25 decks +66% synergy
Godless Shrine
56% of 25 decks +47% synergy
Shattered Sanctum
52% of 25 decks +49% synergy
Caves of Koilos
48% of 25 decks +42% synergy
Vault of Champions
44% of 25 decks +38% synergy
Tainted Field
40% of 25 decks +37% synergy
Orzhov Basilica
40% of 25 decks +36% synergy
Shineshadow Snarl
36% of 25 decks +33% synergy
Temple of Silence
36% of 25 decks +32% synergy
Fetid Heath
32% of 25 decks +30% synergy
Marsh Flats
28% of 25 decks +17% synergy
Brightclimb Pathway
24% of 25 decks +22% synergy
Scrubland
24% of 25 decks +21% synergy
Myriad Landscape
24% of 25 decks +4% synergy
Evolving Wilds
20% of 25 decks -1% synergy
Terramorphic Expanse
16% of 25 decks +0% synergy
Exotic Orchard
16% of 25 decks -19% synergy
Concealed Courtyard
12% of 25 decks +11% synergy
Scoured Barrens
12% of 25 decks +10% synergy
City of Brass
12% of 25 decks +4% synergy
Fabled Passage
12% of 25 decks +3% synergy