Mikaeus, the Unhallowed + Cauldron of Souls + Dross Scorpion + Phyrexian Altar

Mikaeus, the Unhallowed
Cauldron of Souls
Dross Scorpion
Phyrexian Altar

Requires
Mikaeus, the Unhallowed must be on the battlefield. Cauldron of Souls must be on the battlefield. Dross Scorpion must be on the battlefield. Phyrexian Altar must be on the battlefield.
Steps
  1. Activate Cauldron of Souls by tapping it, giving Dross Scorpion persist until end of turn.
  2. Activate Phyrexian Altar by sacrificing Dross Scorpion, adding one mana of any color.
  3. Dross Scorpion dies, triggering its ability, its undying ability and its persist ability.
  4. Resolve the first Dross Scorpion trigger, untapping Cauldron of Souls.
  5. Resolve the Dross Scorpion persist trigger, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  6. Activate Phyrexian Altar by sacrificing Dross Scorpion, adding one mana of any color.
  7. Dross Scorpion dies, triggering its ability and its undying ability.
  8. Resolve the first Dross Scorpion trigger, untapping Cauldron of Souls.
  9. Resolve the second Dross Scorpion trigger, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  10. Activate Phyrexian Altar by sacrificing Dross Scorpion, adding one mana of any color.
  11. Dross Scorpion dies, triggering its ability and its persist ability.
  12. Repeat from step 4.
Results
Infinite colored mana. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Top Commanders (2)
Fain, the Broker
0.71% of 281 decks 2 decks
Mikaeus, the Unhallowed
0.26% of 1156 decks 3 decks
High Synergy Cards (10)
Pitiless Plunderer
53% of 17 decks +49% synergy
Blood Artist
53% of 17 decks +47% synergy
Phyrexian Arena
41% of 17 decks +34% synergy
Crypt Ghast
35% of 17 decks +33% synergy
Gray Merchant of Asphodel
35% of 17 decks +30% synergy
Zulaport Cutthroat
35% of 17 decks +30% synergy
Gravecrawler
29% of 17 decks +28% synergy
Yawgmoth, Thran Physician
29% of 17 decks +27% synergy
Grave Pact
29% of 17 decks +27% synergy
Reassembling Skeleton
29% of 17 decks +27% synergy
Top Cards (10)
Ashnod's Altar
82% of 17 decks +74% synergy
Altar of Dementia
59% of 17 decks +56% synergy
Lightning Greaves
41% of 17 decks +16% synergy
Toxic Deluge
35% of 17 decks +27% synergy
Skullclamp
35% of 17 decks +23% synergy
Solemn Simulacrum
35% of 17 decks +21% synergy
Triskelion
35% of 17 decks +35% synergy
Krark-Clan Ironworks
35% of 17 decks +34% synergy
Myr Retriever
35% of 17 decks +33% synergy
Walking Ballista
35% of 17 decks +33% synergy
Creatures (26)
Carrion Feeder
29% of 17 decks +27% synergy
Viscera Seer
29% of 17 decks +24% synergy
Tatterkite
29% of 17 decks +29% synergy
Putrid Goblin
24% of 17 decks +23% synergy
Puppeteer Clique
24% of 17 decks +23% synergy
Marionette Master
24% of 17 decks +21% synergy
Palladium Myr
24% of 17 decks +21% synergy
Grim Haruspex
24% of 17 decks +21% synergy
Syr Konrad, the Grim
24% of 17 decks +19% synergy
Burnished Hart
24% of 17 decks +19% synergy
Chainbreaker
18% of 17 decks +18% synergy
Cryptic Trilobite
18% of 17 decks +17% synergy
Crystalline Crawler
18% of 17 decks +17% synergy
Workshop Assistant
18% of 17 decks +17% synergy
Junk Diver
18% of 17 decks +17% synergy
K'rrik, Son of Yawgmoth
18% of 17 decks +17% synergy
Hangarback Walker
18% of 17 decks +17% synergy
Sidisi, Undead Vizier
18% of 17 decks +16% synergy
Pawn of Ulamog
18% of 17 decks +16% synergy
Disciple of the Vault
18% of 17 decks +16% synergy
Steel Overseer
18% of 17 decks +16% synergy
Wurmcoil Engine
18% of 17 decks +16% synergy
Myr Battlesphere
18% of 17 decks +15% synergy
Fleshbag Marauder
18% of 17 decks +15% synergy
Sheoldred, Whispering One
18% of 17 decks +15% synergy
Foundry Inspector
18% of 17 decks +13% synergy
Instants (6)
Vampiric Tutor
35% of 17 decks +25% synergy
Entomb
29% of 17 decks +26% synergy
Dark Ritual
24% of 17 decks +13% synergy
Infernal Grasp
20% of 15 decks +16% synergy
Costly Plunder
18% of 17 decks +17% synergy
Cabal Ritual
18% of 17 decks +15% synergy
Sorceries (10)
Demonic Tutor
41% of 17 decks +29% synergy
Feed the Swarm
33% of 15 decks +24% synergy
Buried Alive
24% of 17 decks +21% synergy
Living Death
24% of 17 decks +21% synergy
Diabolic Tutor
24% of 17 decks +20% synergy
Sign in Blood
24% of 17 decks +18% synergy
Reanimate
24% of 17 decks +16% synergy
Rise of the Dark Realms
18% of 17 decks +16% synergy
Read the Bones
18% of 17 decks +13% synergy
Victimize
18% of 17 decks +12% synergy
Utility Artifacts (17)
Panharmonicon
29% of 17 decks +25% synergy
Swiftfoot Boots
29% of 17 decks +1% synergy
Blasting Station
29% of 17 decks +29% synergy
Nim Deathmantle
29% of 17 decks +29% synergy
Bolas's Citadel
24% of 17 decks +18% synergy
Sensei's Divining Top
24% of 17 decks +17% synergy
Skeleton Shard
18% of 17 decks +18% synergy
Animation Module
18% of 17 decks +17% synergy
Mirrorworks
18% of 17 decks +17% synergy
Thornbite Staff
18% of 17 decks +17% synergy
Clock of Omens
18% of 17 decks +17% synergy
Altar of the Brood
18% of 17 decks +16% synergy
Trading Post
18% of 17 decks +16% synergy
Ichor Wellspring
18% of 17 decks +16% synergy
Jet Medallion
18% of 17 decks +16% synergy
Unwinding Clock
18% of 17 decks +15% synergy
Expedition Map
18% of 17 decks +14% synergy
Enchantments (6)
Dictate of Erebos
29% of 17 decks +27% synergy
Animate Dead
29% of 17 decks +24% synergy
Biotransference
25% of 12 decks +24% synergy
Black Market
24% of 17 decks +21% synergy
Necropotence
24% of 17 decks +21% synergy
Mortuary
18% of 17 decks +18% synergy
Planeswalkers (1)
Liliana, Dreadhorde General
18% of 17 decks +16% synergy
Utility Lands (17)
Cabal Coffers
47% of 17 decks +41% synergy
Urborg, Tomb of Yawgmoth
47% of 17 decks +37% synergy
Reliquary Tower
35% of 17 decks +7% synergy
Phyrexian Tower
29% of 17 decks +25% synergy
Command Beacon
29% of 17 decks +25% synergy
Ancient Tomb
29% of 17 decks +19% synergy
Bojuka Bog
29% of 17 decks +14% synergy
Cabal Stronghold
24% of 17 decks +22% synergy
Vault of Whispers
24% of 17 decks +21% synergy
Takenuma, Abandoned Mire
21% of 14 decks +15% synergy
Volrath's Stronghold
18% of 17 decks +17% synergy
Wasteland
18% of 17 decks +16% synergy
Strip Mine
18% of 17 decks +14% synergy
High Market
18% of 17 decks +14% synergy
Inventors' Fair
18% of 17 decks +13% synergy
Buried Ruin
18% of 17 decks +12% synergy
Nykthos, Shrine to Nyx
18% of 17 decks +12% synergy
Mana Artifacts (10)
Sol Ring
71% of 17 decks -14% synergy
Arcane Signet
35% of 17 decks -35% synergy
Charcoal Diamond
29% of 17 decks +26% synergy
Sceptre of Eternal Glory
25% of 12 decks +24% synergy
Gilded Lotus
24% of 17 decks +20% synergy
Mana Vault
24% of 17 decks +17% synergy
Mind Stone
24% of 17 decks +5% synergy
Liquimetal Torque
20% of 15 decks +16% synergy
Hedron Archive
18% of 17 decks +15% synergy
Thran Dynamo
18% of 17 decks +13% synergy
Lands (5)
Blood Crypt
60% of 5 decks +51% synergy
Command Tower
53% of 17 decks -20% synergy
Myriad Landscape
41% of 17 decks +20% synergy
Exotic Orchard
24% of 17 decks -11% synergy
Verdant Catacombs
18% of 17 decks +6% synergy