Eirdu, Carrier of Dawn
Geralf's Messenger
Phantom Train

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield (Eirdu as Isilu, Carrier of Twilight on the battlefield and Geralf's Messenger without a +1/+1 counter on it on the battlefield).

   Steps

How does this combo work?
1
Activate Phantom Train by sacrificing Geralf's Messenger
2
When Geralf's Messenger dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
3
When Geralf's Messenger enters, it triggers, causing an opponent to lose 2 life.
4
Activate Phantom Train by sacrificing Geralf's Messenger
5
When Geralf's Messenger dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
6
When Geralf's Messenger enters, it triggers, causing an opponent to lose 2 life.
7
Resolve both Phantom Train abilities from step 1 and 4.
8
Repeat.

   Results

What do I get from this combo?
Infinite +1/+1 counters on a creature
Infinite ETB
Infinite LTB
Infinite death triggers
Infinite lifeloss
Infinite sacrifice triggers
Umbral Collar Zealot
86%inclusion12 decks14 decks
77%synergy
Vizier of Remedies
71%inclusion10 decks14 decks
71%synergy
Cathars' Crusade
71%inclusion10 decks14 decks
67%synergy
Viscera Seer
79%inclusion11 decks14 decks
59%synergy
Marionette Apprentice
64%inclusion9 decks14 decks
55%synergy
Cruel Celebrant
79%inclusion11 decks14 decks
54%synergy
Ashnod's Altar
71%inclusion10 decks14 decks
53%synergy
Triskelion
50%inclusion7 decks14 decks
50%synergy
Butcher Ghoul
50%inclusion7 decks14 decks
49%synergy
Mikaeus, the Unhallowed
50%inclusion7 decks14 decks
48%synergy
Top Cards
Pitiless Plunderer
64%inclusion9 decks14 decks
48%synergy
Zulaport Cutthroat
64%inclusion9 decks14 decks
43%synergy
Swords to Plowshares
64%inclusion9 decks14 decks
1%synergy
Morbid Opportunist
57%inclusion8 decks14 decks
45%synergy
Elas il-Kor, Sadistic Pilgrim
57%inclusion8 decks14 decks
24%synergy
Zack Fair
50%inclusion7 decks14 decks
46%synergy
Victimize
50%inclusion7 decks14 decks
33%synergy
Deadly Dispute
50%inclusion7 decks14 decks
28%synergy
Blood Artist
50%inclusion7 decks14 decks
20%synergy
Susurian Voidborn
43%inclusion6 decks14 decks
41%synergy
Creatures
Vengeful Bloodwitch
43%inclusion6 decks14 decks
37%synergy
Solemn Simulacrum
43%inclusion6 decks14 decks
28%synergy
Bartolomé del Presidio
43%inclusion6 decks14 decks
27%synergy
Ayara, First of Locthwain
36%inclusion5 decks14 decks
32%synergy
Woe Strider
36%inclusion5 decks14 decks
32%synergy
Syr Konrad, the Grim
36%inclusion5 decks14 decks
28%synergy
Grim Haruspex
36%inclusion5 decks14 decks
27%synergy
Yahenni, Undying Partisan
36%inclusion5 decks14 decks
26%synergy
Corpse Knight
36%inclusion5 decks14 decks
24%synergy
Anafenza, Kin-Tree Spirit
29%inclusion4 decks14 decks
28%synergy
Scholar of New Horizons
29%inclusion4 decks14 decks
26%synergy
Greedy Freebooter
29%inclusion4 decks14 decks
26%synergy
Midnight Reaper
29%inclusion4 decks14 decks
22%synergy
Yawgmoth, Thran Physician
29%inclusion4 decks14 decks
22%synergy
Pawn of Ulamog
29%inclusion4 decks14 decks
22%synergy
Sephiroth, Fabled SOLDIER
29%inclusion4 decks14 decks
22%synergy
Luminous Broodmoth
29%inclusion4 decks14 decks
20%synergy
Warren Soultrader
29%inclusion4 decks14 decks
19%synergy
Gray Merchant of Asphodel
29%inclusion4 decks14 decks
18%synergy
Braids, Arisen Nightmare
29%inclusion4 decks14 decks
17%synergy
Falkenrath Torturer
21%inclusion3 decks14 decks
21%synergy
Arcbound Worker
21%inclusion3 decks14 decks
21%synergy
Bloodcrazed Paladin
21%inclusion3 decks14 decks
21%synergy
Priest of the Crossing
21%inclusion3 decks14 decks
21%synergy
Emptiness
21%inclusion3 decks14 decks
20%synergy
Archon of Cruelty
21%inclusion3 decks14 decks
20%synergy
High-Society Hunter
21%inclusion3 decks14 decks
19%synergy
Helpful Hunter
21%inclusion3 decks14 decks
19%synergy
Cosmogrand Zenith
21%inclusion3 decks14 decks
19%synergy
Judge Magister Gabranth
21%inclusion3 decks14 decks
18%synergy
Carrion Feeder
21%inclusion3 decks14 decks
13%synergy
Sun Titan
21%inclusion3 decks14 decks
10%synergy
Witch Enchanter
21%inclusion3 decks14 decks
9%synergy
Welcoming Vampire
21%inclusion3 decks14 decks
7%synergy
Instants
Path to Exile
43%inclusion6 decks14 decks
-7%synergy
Village Rites
36%inclusion5 decks14 decks
14%synergy
Dark Ritual
29%inclusion4 decks14 decks
3%synergy
Despark
29%inclusion4 decks14 decks
-1%synergy
Altar's Reap
21%inclusion3 decks14 decks
20%synergy
Duty Beyond Death
21%inclusion3 decks14 decks
19%synergy
Stroke of Midnight
21%inclusion3 decks14 decks
8%synergy
Generous Gift
21%inclusion3 decks14 decks
-1%synergy
Sorceries
Damn
43%inclusion6 decks14 decks
11%synergy
Eaten Alive
21%inclusion3 decks14 decks
20%synergy
Blasphemous Edict
21%inclusion3 decks14 decks
16%synergy
Diabolic Tutor
21%inclusion3 decks14 decks
16%synergy
Exsanguinate
21%inclusion3 decks14 decks
8%synergy
Sign in Blood
21%inclusion3 decks14 decks
4%synergy
Utility Artifacts
Blasting Station
36%inclusion5 decks14 decks
34%synergy
Skullclamp
36%inclusion5 decks14 decks
9%synergy
Lightning Greaves
29%inclusion4 decks14 decks
9%synergy
Altar of Dementia
21%inclusion3 decks14 decks
17%synergy
Phyrexian Altar
21%inclusion3 decks14 decks
10%synergy
Swiftfoot Boots
21%inclusion3 decks14 decks
-3%synergy
Enchantments
Bastion of Remembrance
43%inclusion6 decks14 decks
25%synergy
Solemnity
36%inclusion5 decks14 decks
33%synergy
Phyrexian Arena
36%inclusion5 decks14 decks
7%synergy
Thran Vigil
29%inclusion4 decks14 decks
28%synergy
The Meathook Massacre
29%inclusion4 decks14 decks
19%synergy
Artifacts
Arcane Signet
86%inclusion12 decks14 decks
6%synergy
Sol Ring
86%inclusion12 decks14 decks
2%synergy
Orzhov Signet
57%inclusion8 decks14 decks
4%synergy
Talisman of Hierarchy
50%inclusion7 decks14 decks
-3%synergy
Blasting Station
36%inclusion5 decks14 decks
34%synergy
Skullclamp
36%inclusion5 decks14 decks
9%synergy
Lightning Greaves
29%inclusion4 decks14 decks
9%synergy
Altar of Dementia
21%inclusion3 decks14 decks
17%synergy
Phyrexian Altar
21%inclusion3 decks14 decks
10%synergy
Swiftfoot Boots
21%inclusion3 decks14 decks
-3%synergy
Utility Lands
Vault of the Archangel
29%inclusion4 decks14 decks
-4%synergy
Nesting Grounds
21%inclusion3 decks14 decks
17%synergy
Shambling Vent
21%inclusion3 decks14 decks
17%synergy
Mana Artifacts
Arcane Signet
86%inclusion12 decks14 decks
6%synergy
Sol Ring
86%inclusion12 decks14 decks
2%synergy
Orzhov Signet
57%inclusion8 decks14 decks
4%synergy
Talisman of Hierarchy
50%inclusion7 decks14 decks
-3%synergy
Lands
Command Tower
86%inclusion12 decks14 decks
-1%synergy
Godless Shrine
71%inclusion10 decks14 decks
20%synergy
Tainted Field
57%inclusion8 decks14 decks
7%synergy
Caves of Koilos
57%inclusion8 decks14 decks
-1%synergy
Isolated Chapel
57%inclusion8 decks14 decks
-10%synergy
Scoured Barrens
50%inclusion7 decks14 decks
27%synergy
Shineshadow Snarl
50%inclusion7 decks14 decks
8%synergy
Exotic Orchard
43%inclusion6 decks14 decks
17%synergy
Shattered Sanctum
36%inclusion5 decks14 decks
-3%synergy
Temple of Silence
36%inclusion5 decks14 decks
-3%synergy
Thriving Heath
29%inclusion4 decks14 decks
26%synergy
Concealed Courtyard
29%inclusion4 decks14 decks
8%synergy
Bleachbone Verge
29%inclusion4 decks14 decks
5%synergy
Orzhov Basilica
29%inclusion4 decks14 decks
-10%synergy
Fetid Heath
29%inclusion4 decks14 decks
-14%synergy
Misty Palms Oasis
21%inclusion3 decks14 decks
20%synergy
Thriving Moor
21%inclusion3 decks14 decks
19%synergy
Fabled Passage
21%inclusion3 decks14 decks
9%synergy
Myriad Landscape
21%inclusion3 decks14 decks
4%synergy
Desolate Mire
21%inclusion3 decks14 decks
3%synergy
Evolving Wilds
21%inclusion3 decks14 decks
2%synergy
Vault of Champions
21%inclusion3 decks14 decks
-18%synergy