The Master, Formed Anew
Yahenni, Undying Partisan
1

   Prerequisites

What do I need to start this combo?
The Master and Yahenni on the battlefield.
Persist Creature and Undying Creature in exile (Persist Creature and Undying Creature with a takeover counter on it in exile).
The Master on the battlefield as a copy of either the persist or undying creature. The Master does not have a +1/+1 counter on it if it is a copy of the undying creature, or a -1/-1 counter on it otherwise.

   Steps

How does this combo work?
1
Activate Yahenni by sacrificing The Master.
2
When The Master dies, if it was a copy of the undying creature, its undying ability triggers, returning it from your graveyard to the battlefield as a copy of the persist creature with a +1/+1 counter on it.
3
Otherwise, if The Master was a copy of the persist creature, its persist ability triggers, returning it from your graveyard to the battlefield as a copy of the undying creature with a -1/-1 counter on it.
4
Resolve the Yahenni ability.
5
Repeat.

   Results

What do I get from this combo?
Infinite LTB
Infinite ETB
Infinite sacrifice triggers
Infinite death triggers
Sephiroth, Planet's Heir
0.21% of 472 decks 1 decks
Top Commanders
The Master, Formed Anew
2.17% of 598 decks 13 decks
Missy
0.23% of 2201 decks 5 decks
Marneus Calgar
0.01% of 9847 decks 1 decks
Brinelin, the Moon Kraken // Ravos, Soultender
12.50% of 8 decks 1 decks
Kels, Fight Fixer
0.17% of 577 decks 1 decks
The Rani
0.07% of 1439 decks 1 decks
Toxrill, the Corrosive
0.02% of 5436 decks 1 decks
Marchesa, the Black Rose
0.01% of 8630 decks 1 decks
High Synergy Cards
Goblin Bombardment
86% of 7 decks +79% synergy
Skirk Alarmist
57% of 7 decks +57% synergy
Carrion Feeder
56% of 25 decks +51% synergy
Viscera Seer
60% of 25 decks +51% synergy
Ashnod's Altar
56% of 25 decks +49% synergy
Blood Artist
60% of 25 decks +48% synergy
Driver of the Dead
48% of 25 decks +48% synergy
Puppeteer Clique
44% of 25 decks +43% synergy
Butcher Ghoul
40% of 25 decks +40% synergy
Blasphemous Act
71% of 7 decks +38% synergy
Top Cards
Zulaport Cutthroat
44% of 25 decks +35% synergy
Solemn Simulacrum
44% of 25 decks +30% synergy
Altar of Dementia
40% of 25 decks +37% synergy
Phyrexian Altar
40% of 25 decks +36% synergy
Bastion of Remembrance
40% of 25 decks +34% synergy
River Kelpie
36% of 25 decks +35% synergy
Woe Strider
36% of 25 decks +34% synergy
Glen Elendra Archmage
36% of 25 decks +34% synergy
Syr Konrad, the Grim
36% of 25 decks +27% synergy
Geralf's Messenger
32% of 25 decks +32% synergy
Game Changers
Rhystic Study
20% of 25 decks -7% synergy
Demonic Tutor
16% of 25 decks -5% synergy
Cyclonic Rift
16% of 25 decks -10% synergy
Vampiric Tutor
12% of 25 decks -5% synergy
Fierce Guardianship
12% of 25 decks -6% synergy
Creatures
Putrid Goblin
32% of 25 decks +31% synergy
Cavalier of Night
32% of 25 decks +31% synergy
Pitiless Plunderer
32% of 25 decks +24% synergy
Warren Soultrader
31% of 16 decks +26% synergy
Accursed Marauder
31% of 16 decks +26% synergy
Nardole, Resourceful Cyborg
28% of 25 decks +28% synergy
Lesser Masticore
28% of 25 decks +28% synergy
Grim Haruspex
24% of 25 decks +20% synergy
Mulldrifter
24% of 25 decks +19% synergy
Braids, Arisen Nightmare
24% of 25 decks +17% synergy
Geralf's Mindcrusher
20% of 25 decks +20% synergy
Bloodthrone Vampire
20% of 25 decks +20% synergy
The Cyber-Controller
20% of 25 decks +19% synergy
Mikaeus, the Unhallowed
20% of 25 decks +17% synergy
Thassa, Deep-Dwelling
20% of 25 decks +17% synergy
Baleful Strix
20% of 25 decks +7% synergy
Marionette Apprentice
19% of 16 decks +14% synergy
Satoru, the Infiltrator
18% of 17 decks +15% synergy
Stormbound Geist
16% of 25 decks +16% synergy
Ruthless Ripper
16% of 25 decks +16% synergy
Cavern Harpy
16% of 25 decks +16% synergy
Pawn of Ulamog
16% of 25 decks +14% synergy
Falkenrath Noble
16% of 25 decks +14% synergy
Reassembling Skeleton
16% of 25 decks +12% synergy
Midnight Reaper
16% of 25 decks +12% synergy
Plaguecrafter
16% of 25 decks +11% synergy
Coral Trickster
12% of 25 decks +12% synergy
Sightless Ghoul
12% of 25 decks +12% synergy
Renegade Silent
12% of 25 decks +12% synergy
Kadena's Silencer
12% of 25 decks +12% synergy
Bloodflow Connoisseur
12% of 25 decks +12% synergy
Willbender
12% of 25 decks +12% synergy
Vesuvan Shapeshifter
12% of 25 decks +11% synergy
Cyberman Patrol
12% of 25 decks +11% synergy
Fell Stinger
12% of 25 decks +11% synergy
Havengul Lich
12% of 25 decks +11% synergy
Massacre Girl
12% of 25 decks +10% synergy
Gravecrawler
12% of 25 decks +9% synergy
Butcher of Malakir
12% of 25 decks +9% synergy
Ravenous Chupacabra
12% of 25 decks +8% synergy
Chasm Skulker
12% of 25 decks +8% synergy
Hostage Taker
12% of 25 decks +7% synergy
Massacre Wurm
12% of 25 decks +7% synergy
Hullbreaker Horror
12% of 25 decks +5% synergy
Instants
Chaos Warp
43% of 7 decks +12% synergy
Dark Ritual
32% of 25 decks +9% synergy
Counterspell
32% of 25 decks -10% synergy
Ghostly Flicker
28% of 25 decks +23% synergy
An Offer You Can't Refuse
28% of 25 decks +6% synergy
Cyber Conversion
24% of 25 decks +23% synergy
Mana Drain
24% of 25 decks +9% synergy
Planar Incision
20% of 25 decks +19% synergy
Essence Flux
16% of 25 decks +14% synergy
Snap
16% of 25 decks +9% synergy
Village Rites
16% of 25 decks +6% synergy
Deadly Rollick
16% of 25 decks +4% synergy
Negate
16% of 25 decks -6% synergy
Curfew
12% of 25 decks +12% synergy
Familiar's Ruse
12% of 25 decks +11% synergy
Vona's Hunger
12% of 25 decks +11% synergy
Evacuation
12% of 25 decks +10% synergy
Not Dead After All
12% of 25 decks +9% synergy
Tragic Slip
12% of 25 decks +8% synergy
Dispel
12% of 25 decks +8% synergy
Fact or Fiction
12% of 25 decks +6% synergy
Infernal Grasp
12% of 25 decks +5% synergy
Swan Song
12% of 25 decks -4% synergy
Arcane Denial
12% of 25 decks -8% synergy
Sorceries
Delete
43% of 7 decks +42% synergy
Feed the Swarm
32% of 25 decks +15% synergy
Devastation Tide
20% of 25 decks +19% synergy
Victimize
20% of 25 decks +8% synergy
Read the Bones
16% of 25 decks +9% synergy
Diabolic Intent
16% of 25 decks +8% synergy
Night's Whisper
16% of 25 decks +7% synergy
Whelming Wave
12% of 25 decks +10% synergy
Persist
12% of 25 decks +10% synergy
Unearth
12% of 25 decks +9% synergy
Dread Return
12% of 25 decks +7% synergy
Buried Alive
12% of 25 decks +6% synergy
Ponder
12% of 25 decks -0% synergy
Windfall
12% of 25 decks -1% synergy
Reanimate
12% of 25 decks -5% synergy
Toxic Deluge
12% of 25 decks -6% synergy
Utility Artifacts
Blasting Station
32% of 25 decks +31% synergy
Commander's Sphere
20% of 25 decks +6% synergy
Mind Stone
20% of 25 decks +3% synergy
Lightning Greaves
20% of 25 decks -5% synergy
Cybership
16% of 25 decks +16% synergy
Scroll of Fate
16% of 25 decks +16% synergy
Spawning Pit
12% of 25 decks +12% synergy
Crystal Shard
12% of 25 decks +11% synergy
Conjurer's Closet
12% of 25 decks +10% synergy
Wayfarer's Bauble
12% of 25 decks +3% synergy
Skullclamp
12% of 25 decks +0% synergy
Swiftfoot Boots
12% of 25 decks -15% synergy
Enchantments
Thran Vigil
24% of 25 decks +24% synergy
Death in Heaven
20% of 25 decks +20% synergy
Propaganda
20% of 25 decks +8% synergy
Phyrexian Arena
20% of 25 decks +4% synergy
Animate Dead
16% of 25 decks +7% synergy
Black Market Connections
16% of 25 decks +5% synergy
Primordial Mist
12% of 25 decks +11% synergy
Virtue of Knowledge
12% of 25 decks +10% synergy
Revel in Riches
12% of 25 decks +9% synergy
Dictate of Erebos
12% of 25 decks +9% synergy
Bitterblossom
12% of 25 decks +8% synergy
Grave Pact
12% of 25 decks +7% synergy
The Meathook Massacre
12% of 25 decks +7% synergy
Mystic Remora
12% of 25 decks -5% synergy
Utility Lands
Reliquary Tower
28% of 25 decks -2% synergy
Temple of the False God
20% of 25 decks +10% synergy
Bojuka Bog
20% of 25 decks -10% synergy
Phyrexian Tower
16% of 25 decks +7% synergy
Urborg, Tomb of Yawgmoth
16% of 25 decks +7% synergy
Trenzalore Clocktower
12% of 25 decks +11% synergy
Volrath's Stronghold
12% of 25 decks +11% synergy
Command Beacon
12% of 25 decks +7% synergy
Rogue's Passage
12% of 25 decks -8% synergy
Mana Artifacts
Sol Ring
80% of 25 decks -4% synergy
Arcane Signet
76% of 25 decks +4% synergy
Talisman of Dominance
56% of 25 decks +24% synergy
Talisman of Indulgence
43% of 7 decks +16% synergy
Dimir Signet
40% of 25 decks +12% synergy
Thought Vessel
24% of 25 decks +7% synergy
Fellwar Stone
24% of 25 decks +3% synergy
Laser Screwdriver
12% of 25 decks +12% synergy
Replicating Ring
12% of 25 decks +11% synergy
Worn Powerstone
12% of 25 decks +9% synergy
Everflowing Chalice
12% of 25 decks +8% synergy
Sky Diamond
12% of 25 decks +7% synergy
Charcoal Diamond
12% of 25 decks +7% synergy
Lands
Command Tower
76% of 25 decks +2% synergy
Sunken Hollow
60% of 25 decks +25% synergy
Crumbling Necropolis
57% of 7 decks +26% synergy
Darkwater Catacombs
48% of 25 decks +33% synergy
Choked Estuary
44% of 25 decks +28% synergy
Drowned Catacomb
44% of 25 decks +17% synergy
Fiery Islet
43% of 7 decks +35% synergy
Haunted Ridge
43% of 7 decks +27% synergy
Stormcarved Coast
43% of 7 decks +25% synergy
Sulfurous Springs
43% of 7 decks +22% synergy
Xander's Lounge
43% of 7 decks +17% synergy
Underground River
40% of 25 decks +19% synergy
Temple of Deceit
36% of 25 decks +20% synergy
Shipwreck Marsh
36% of 25 decks +17% synergy
Dimir Aqueduct
28% of 25 decks +12% synergy
Exotic Orchard
28% of 25 decks -8% synergy
Watery Grave
24% of 25 decks -16% synergy
Tainted Isle
20% of 25 decks +9% synergy
Evolving Wilds
20% of 25 decks -1% synergy
Path of Ancestry
20% of 25 decks -2% synergy
Morphic Pool
20% of 25 decks -6% synergy
Ice Tunnel
16% of 25 decks +14% synergy
Terramorphic Expanse
16% of 25 decks +0% synergy
Myriad Landscape
16% of 25 decks -2% synergy
Gallifrey Council Chamber
12% of 25 decks +12% synergy
Contaminated Aquifer
12% of 25 decks +9% synergy
River of Tears
12% of 25 decks +9% synergy
Sunken Ruins
12% of 25 decks +8% synergy
Polluted Delta
12% of 25 decks +0% synergy