Mikaeus, the Unhallowed + Hex Parasite + Ashnod's Altar + Gray Merchant of Asphodel

Mikaeus, the Unhallowed
Hex Parasite
Ashnod's Altar
Gray Merchant of Asphodel

Requires
Mikaeus, the Unhallowed must be on the battlefield. Hex Parasite must be on the battlefield. Ashnod's Altar must be on the battlefield. Gray Merchant of Asphodel must be on the battlefield. Gray Merchant does not have a +1/+1 counter on it.
Steps
  1. Activate Ashnod's Altar by sacrificing Gray Merchant, adding .
  2. Gray Merchant dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  3. Gray Merchant enters the battlefield, causing each opponent to lose at least five life and you to gain that much life.
  4. Activate Hex Parasite by paying 1 and two life, removing the +1/+1 counter from Gray Merchant and giving Hex Parasite +1/+0 until end of turn.
  5. Repeat.
Results
Infinite colorless mana. Infinite death triggers. Infinite ETB. Infinite lifegain. Infinite lifegain triggers. Infinite lifeloss. Infinite LTB. Infinitely powerful Hex Parasite until end of turn. Infinite sacrifice triggers.

Mikaeus, the Unhallowed
2.84% of 1337 decks 38 decks
Gisa, the Hellraiser
0.78% of 2576 decks 20 decks
Yawgmoth, Thran Physician
0.13% of 5567 decks 7 decks
Sivriss, Nightmare Speaker // Haunted One
4.41% of 68 decks 3 decks
Gonti, Lord of Luxury
0.22% of 1341 decks 3 decks
Meren of Clan Nel Toth
0.02% of 14905 decks 3 decks
Ghoulcaller Gisa
0.11% of 2755 decks 3 decks
K'rrik, Son of Yawgmoth
0.02% of 13841 decks 3 decks
Mirko, Obsessive Theorist
0.04% of 5144 decks 2 decks
Horobi, Death's Wail
0.12% of 1673 decks 2 decks
Marchesa, Dealer of Death
0.04% of 2796 decks 1 decks
Glissa Sunslayer
0.05% of 2205 decks 1 decks
Yahenni, Undying Partisan
0.11% of 881 decks 1 decks
Sheoldred
0.07% of 1418 decks 1 decks
Sidisi, Undead Vizier
0.18% of 546 decks 1 decks
Lim-Dûl the Necromancer
0.54% of 184 decks 1 decks
Liliana, Heretical Healer
0.03% of 3238 decks 1 decks
Sheoldred, Whispering One
0.11% of 878 decks 1 decks
New Cards
Withering Torment
80% of 5 decks +58% synergy
High Synergy Cards
Reclamation Sage
100% of 4 decks +89% synergy
Cabal Coffers
81% of 97 decks +71% synergy
Assassin's Trophy
100% of 4 decks +70% synergy
Blood Artist
73% of 97 decks +61% synergy
Crypt Ghast
66% of 97 decks +61% synergy
Jet Medallion
61% of 97 decks +58% synergy
Ayara, First of Locthwain
58% of 92 decks +54% synergy
Warren Soultrader
61% of 23 decks +53% synergy
Urborg, Tomb of Yawgmoth
59% of 97 decks +49% synergy
Phyrexian Altar
53% of 97 decks +49% synergy
Top Cards
Dark Ritual
68% of 97 decks +46% synergy
Feed the Swarm
56% of 88 decks +37% synergy
Viscera Seer
52% of 97 decks +42% synergy
Reanimate
49% of 97 decks +34% synergy
Skullclamp
48% of 97 decks +36% synergy
Phyrexian Arena
47% of 97 decks +33% synergy
Zulaport Cutthroat
46% of 97 decks +36% synergy
Gravecrawler
44% of 97 decks +42% synergy
Toxic Deluge
44% of 97 decks +27% synergy
Yawgmoth, Thran Physician
42% of 92 decks +39% synergy
Creatures
Melira, Sylvok Outcast
75% of 4 decks +75% synergy
Woodfall Primus
75% of 4 decks +74% synergy
Caustic Caterpillar
75% of 4 decks +73% synergy
Spore Frog
75% of 4 decks +72% synergy
Elves of Deep Shadow
75% of 4 decks +64% synergy
Elvish Mystic
75% of 4 decks +57% synergy
Sakura-Tribe Elder
75% of 4 decks +56% synergy
Llanowar Elves
75% of 4 decks +54% synergy
Eternal Witness
75% of 4 decks +54% synergy
Pitiless Plunderer
41% of 92 decks +34% synergy
Carrion Feeder
41% of 97 decks +36% synergy
Solemn Simulacrum
40% of 97 decks +26% synergy
Accursed Marauder
38% of 16 decks +28% synergy
Forsaken Miner
32% of 40 decks +31% synergy
Grim Servant
30% of 23 decks +29% synergy
Kaervek, the Punisher
30% of 40 decks +29% synergy
Puppeteer Clique
30% of 97 decks +28% synergy
Triskelion
29% of 97 decks +28% synergy
Grim Haruspex
29% of 97 decks +25% synergy
Pawn of Ulamog
27% of 97 decks +25% synergy
Walking Ballista
26% of 93 decks +23% synergy
Massacre Wurm
26% of 97 decks +21% synergy
Orcish Bowmasters
25% of 56 decks +14% synergy
Sidisi, Undead Vizier
25% of 97 decks +23% synergy
Braids, Arisen Nightmare
24% of 79 decks +16% synergy
Putrid Goblin
24% of 92 decks +23% synergy
Fleshbag Marauder
24% of 97 decks +20% synergy
Undead Augur
23% of 92 decks +21% synergy
Syr Konrad, the Grim
23% of 92 decks +14% synergy
K'rrik, Son of Yawgmoth
22% of 92 decks +20% synergy
Tatterkite
22% of 97 decks +22% synergy
Reassembling Skeleton
22% of 97 decks +18% synergy
Sheoldred, Whispering One
22% of 97 decks +17% synergy
Plague Belcher
21% of 92 decks +20% synergy
Death Baron
21% of 97 decks +18% synergy
Mirkwood Bats
20% of 56 decks +7% synergy
Cemetery Reaper
20% of 97 decks +18% synergy
Grave Titan
20% of 97 decks +17% synergy
Morbid Opportunist
19% of 85 decks +13% synergy
Burnished Hart
19% of 97 decks +14% synergy
Midnight Reaper
18% of 92 decks +15% synergy
Boggart Trawler
18% of 17 decks +12% synergy
Dauthi Voidwalker
17% of 87 decks +9% synergy
Vein Ripper
17% of 42 decks +14% synergy
Undead Warchief
16% of 97 decks +15% synergy
Roaming Throne
16% of 44 decks +6% synergy
Blood Pet
15% of 97 decks +14% synergy
Kokusho, the Evening Star
15% of 97 decks +14% synergy
Champion of the Perished
15% of 85 decks +14% synergy
Sheoldred
15% of 62 decks +11% synergy
Instants
Return to Nature
75% of 4 decks +69% synergy
Beast Within
75% of 4 decks +36% synergy
Vampiric Tutor
39% of 97 decks +21% synergy
Deadly Dispute
36% of 85 decks +25% synergy
Deadly Rollick
36% of 88 decks +26% synergy
Village Rites
34% of 88 decks +24% synergy
Defile
32% of 92 decks +28% synergy
Tragic Slip
30% of 97 decks +26% synergy
Corrupted Conviction
26% of 58 decks +20% synergy
Go for the Throat
25% of 97 decks +18% synergy
Malakir Rebirth
23% of 88 decks +14% synergy
Imp's Mischief
23% of 97 decks +20% synergy
Culling the Weak
23% of 97 decks +19% synergy
Infernal Grasp
22% of 85 decks +15% synergy
Fell the Profane
22% of 23 decks +10% synergy
Sudden Spoiling
22% of 97 decks +20% synergy
Entomb
21% of 97 decks +13% synergy
Cabal Ritual
19% of 97 decks +14% synergy
Consuming Corruption
18% of 17 decks +15% synergy
Flare of Malice
17% of 23 decks +14% synergy
Snuff Out
14% of 97 decks +12% synergy
Not Dead After All
14% of 50 decks +10% synergy
Dismember
13% of 97 decks +11% synergy
Baleful Mastery
11% of 87 decks +9% synergy
Malicious Affliction
11% of 97 decks +11% synergy
Saw in Half
10% of 70 decks +7% synergy
Hero's Downfall
9% of 97 decks +7% synergy
Bitter Triumph
9% of 44 decks +4% synergy
Pile On
9% of 56 decks +8% synergy
Murder
8% of 97 decks +5% synergy
Shoot the Sheriff
8% of 40 decks +6% synergy
Heartless Act
7% of 88 decks +6% synergy
Force of Despair
7% of 92 decks +5% synergy
V.A.T.S.
6% of 47 decks +5% synergy
Ad Nauseam
6% of 97 decks +3% synergy
Pharika's Libation
5% of 92 decks +5% synergy
Darkness
5% of 97 decks +4% synergy
Doom Blade
5% of 97 decks +3% synergy
Sorceries
Eldritch Evolution
75% of 4 decks +70% synergy
Culling Ritual
75% of 4 decks +64% synergy
Demonic Tutor
49% of 97 decks +27% synergy
Sign in Blood
37% of 97 decks +27% synergy
Damnation
35% of 97 decks +27% synergy
Victimize
35% of 97 decks +23% synergy
Diabolic Intent
32% of 97 decks +23% synergy
Exsanguinate
29% of 97 decks +23% synergy
Insatiable Avarice
25% of 40 decks +20% synergy
Mutilate
25% of 97 decks +23% synergy
Night's Whisper
25% of 97 decks +16% synergy
Torment of Hailfire
23% of 92 decks +18% synergy
Black Sun's Zenith
22% of 97 decks +20% synergy
Bubbling Muck
14% of 97 decks +13% synergy
Diabolic Tutor
14% of 97 decks +8% synergy
Beseech the Mirror
13% of 52 decks +9% synergy
Living Death
13% of 97 decks +8% synergy
Buried Alive
13% of 97 decks +8% synergy
Read the Bones
13% of 97 decks +6% synergy
Decree of Pain
11% of 97 decks +9% synergy
Persist
10% of 87 decks +8% synergy
Beseech the Queen
10% of 97 decks +9% synergy
Grim Tutor
10% of 97 decks +6% synergy
Lively Dirge
10% of 40 decks +8% synergy
Dread Return
9% of 97 decks +4% synergy
Yawgmoth's Will
8% of 97 decks +7% synergy
Profane Tutor
8% of 87 decks +5% synergy
Peer into the Abyss
8% of 88 decks +5% synergy
Rush of Dread
8% of 40 decks +6% synergy
Aether Snap
7% of 97 decks +7% synergy
Rise of the Dark Realms
7% of 97 decks +4% synergy
Agadeem's Awakening
7% of 88 decks +3% synergy
Exhume
6% of 97 decks +5% synergy
Beacon of Unrest
6% of 97 decks +5% synergy
Imperial Seal
6% of 97 decks +0% synergy
Unmarked Grave
6% of 87 decks +3% synergy
Scheming Symmetry
5% of 92 decks +3% synergy
Army of the Damned
5% of 97 decks +3% synergy
Syphon Mind
5% of 97 decks +2% synergy
Unearth
5% of 97 decks +2% synergy
Utility Artifacts
Birthing Pod
75% of 4 decks +72% synergy
Altar of Dementia
41% of 97 decks +38% synergy
Lightning Greaves
35% of 97 decks +10% synergy
Bolas's Citadel
33% of 92 decks +23% synergy
Blasting Station
32% of 97 decks +31% synergy
Swiftfoot Boots
31% of 97 decks +3% synergy
Cauldron of Souls
26% of 97 decks +25% synergy
Bontu's Monument
24% of 92 decks +22% synergy
Expedition Map
22% of 97 decks +18% synergy
Sensei's Divining Top
15% of 97 decks +10% synergy
Aetherflux Reservoir
12% of 96 decks +9% synergy
Wayfarer's Bauble
12% of 97 decks +2% synergy
Embalmer's Tools
12% of 92 decks +12% synergy
Mithril Coat
12% of 52 decks +6% synergy
Nim Deathmantle
11% of 97 decks +11% synergy
The One Ring
11% of 63 decks +2% synergy
Altar of the Brood
10% of 97 decks +9% synergy
Whip of Erebos
10% of 97 decks +7% synergy
Palantír of Orthanc
10% of 52 decks +8% synergy
Panharmonicon
7% of 96 decks +3% synergy
Scrabbling Claws
6% of 97 decks +6% synergy
Relic of Progenitus
6% of 97 decks +6% synergy
Amulet of Vigor
6% of 97 decks +5% synergy
Mimic Vat
6% of 97 decks +5% synergy
Mindcrank
6% of 97 decks +4% synergy
Agatha's Soul Cauldron
6% of 52 decks +4% synergy
Desecrated Tomb
5% of 92 decks +5% synergy
Spawning Pit
5% of 97 decks +5% synergy
Power Conduit
5% of 97 decks +5% synergy
Strionic Resonator
5% of 97 decks +2% synergy
Enchantments
Retribution of the Ancients
42% of 97 decks +42% synergy
Grave Pact
41% of 97 decks +37% synergy
Animate Dead
35% of 97 decks +26% synergy
Dictate of Erebos
34% of 97 decks +30% synergy
Black Market
28% of 97 decks +23% synergy
Necropotence
27% of 97 decks +21% synergy
Black Market Connections
23% of 81 decks +13% synergy
Attrition
20% of 97 decks +19% synergy
Necromancy
20% of 97 decks +17% synergy
Phyrexian Reclamation
20% of 97 decks +16% synergy
The Meathook Massacre
19% of 85 decks +14% synergy
Ripples of Undeath
18% of 17 decks +11% synergy
Bastion of Remembrance
17% of 88 decks +11% synergy
Endless Ranks of the Dead
16% of 97 decks +15% synergy
Chthonian Nightmare
12% of 24 decks +9% synergy
Exquisite Blood
12% of 97 decks +7% synergy
Heartless Summoning
10% of 97 decks +9% synergy
Bloodchief Ascension
9% of 97 decks +6% synergy
Virtue of Persistence
8% of 50 decks +5% synergy
Revel in Riches
8% of 92 decks +4% synergy
Kaya's Ghostform
8% of 92 decks +4% synergy
Grave Betrayal
7% of 97 decks +6% synergy
Dark Prophecy
7% of 97 decks +6% synergy
Vampiric Rites
7% of 97 decks +5% synergy
Blight Mound
7% of 87 decks +6% synergy
Nest of Scarabs
7% of 92 decks +6% synergy
Dreadhorde Invasion
7% of 92 decks +4% synergy
Greed
6% of 97 decks +4% synergy
Bitterblossom
6% of 97 decks +2% synergy
Sanguine Bond
6% of 97 decks +0% synergy
Agent of the Iron Throne
6% of 81 decks +4% synergy
Contamination
5% of 97 decks +5% synergy
Wound Reflection
5% of 97 decks +4% synergy
Oversold Cemetery
5% of 97 decks +3% synergy
Battles
Invasion of Innistrad
7% of 56 decks +7% synergy
Planeswalkers
Liliana, Dreadhorde General
27% of 92 decks +24% synergy
Liliana of the Dark Realms
23% of 97 decks +21% synergy
Liliana Vess
10% of 97 decks +9% synergy
Tevesh Szat, Doom of Fools
6% of 88 decks +4% synergy
Sorin Markov
5% of 97 decks +4% synergy
Utility Lands
Bojuka Bog
67% of 97 decks +37% synergy
Phyrexian Tower
53% of 97 decks +44% synergy
Nykthos, Shrine to Nyx
44% of 97 decks +39% synergy
Cabal Stronghold
40% of 92 decks +37% synergy
Takenuma, Abandoned Mire
36% of 84 decks +25% synergy
Reliquary Tower
29% of 97 decks -1% synergy
War Room
26% of 88 decks +20% synergy
Castle Locthwain
26% of 92 decks +21% synergy
Witch's Cottage
23% of 92 decks +19% synergy
High Market
23% of 97 decks +20% synergy
Spymaster's Vault
22% of 23 decks +18% synergy
Crypt of Agadeem
18% of 97 decks +16% synergy
Thespian's Stage
16% of 97 decks +14% synergy
Command Beacon
15% of 97 decks +11% synergy
Ancient Tomb
15% of 97 decks +5% synergy
Rogue's Passage
15% of 97 decks -4% synergy
Maze of Ith
14% of 97 decks +12% synergy
Mortuary Mire
14% of 97 decks +9% synergy
Strip Mine
13% of 97 decks +10% synergy
Urza's Saga
13% of 87 decks +5% synergy
Diamond City
12% of 40 decks +12% synergy
Ghost Quarter
11% of 97 decks +9% synergy
Barren Moor
11% of 97 decks +8% synergy
Unholy Grotto
10% of 97 decks +10% synergy
Shizo, Death's Storehouse
10% of 97 decks +6% synergy
Volrath's Stronghold
9% of 97 decks +8% synergy
Temple of the False God
9% of 97 decks -0% synergy
Dark Depths
8% of 97 decks +7% synergy
Westvale Abbey
8% of 97 decks +6% synergy
Desert
6% of 97 decks +6% synergy
Deserted Temple
6% of 97 decks +6% synergy
Nesting Grounds
6% of 88 decks +4% synergy
Field of the Dead
5% of 92 decks +2% synergy
Polluted Mire
5% of 97 decks +4% synergy
Arcane Lighthouse
5% of 97 decks +4% synergy
Mana Artifacts
Sol Ring
90% of 97 decks +5% synergy
Arcane Signet
57% of 92 decks -15% synergy
Mind Stone
27% of 97 decks +9% synergy
Liquimetal Torque
23% of 87 decks +19% synergy
Throne of Eldraine
20% of 49 decks +18% synergy
Fellwar Stone
19% of 97 decks -3% synergy
Thought Vessel
18% of 97 decks +1% synergy
Mana Crypt
15% of 97 decks +6% synergy
Nyx Lotus
15% of 92 decks +14% synergy
Jeweled Lotus
15% of 88 decks +9% synergy
Caged Sun
12% of 97 decks +10% synergy
Charcoal Diamond
12% of 97 decks +7% synergy
Sceptre of Eternal Glory
11% of 70 decks +10% synergy
Extraplanar Lens
10% of 97 decks +9% synergy
Lotus Petal
9% of 97 decks +3% synergy
Chrome Mox
8% of 97 decks +2% synergy
Crowded Crypt
8% of 85 decks +7% synergy
Mana Vault
7% of 97 decks +1% synergy
Lands
Golgari Rot Farm
100% of 4 decks +82% synergy
Llanowar Wastes
100% of 4 decks +74% synergy
Morphic Pool
100% of 3 decks +74% synergy
Watery Grave
100% of 3 decks +59% synergy
Overgrown Tomb
100% of 4 decks +57% synergy
Myriad Landscape
26% of 97 decks +6% synergy
Urza's Cave
21% of 24 decks +17% synergy
Command Tower
12% of 97 decks -62% synergy
Cavern of Souls
11% of 97 decks +5% synergy
Demolition Field
7% of 67 decks +4% synergy
Forbidden Orchard
7% of 97 decks +4% synergy
Bloodstained Mire
5% of 97 decks -5% synergy
Verdant Catacombs
5% of 97 decks -6% synergy