Pentavus + Cauldron of Souls + Clock of Omens + Krark-Clan Ironworks

Pentavus
Cauldron of Souls
Clock of Omens
Krark-Clan Ironworks

Requires
Pentavus must be on the battlefield. Cauldron of Souls must be on the battlefield. Clock of Omens must be on the battlefield. Krark-Clan Ironworks must be on the battlefield.
Steps
  1. Activate Cauldron of Souls by tapping it, giving Pentavus persist until end of turn.
  2. Activate Krark-Clan Ironworks by sacrificing Pentavus, adding .
  3. When Pentavus dies, its persist ability triggers, returning it from your graveyard to the battlefield with four +1/+1 counters on it.
  4. Activate Pentavus' first ability twice by paying 2 and removing two +1/+1 counters from it, creating two 1/1 Pentavite artifact creature tokens.
  5. Activate Clock of Omens by tapping Pentavus and a Pentavite, untapping Cauldron of Souls.
  6. Repeat.
  7. Once you have infinite colorless mana and Pentavite tokens, you may use Pentavus' second ability to put infinite +1/+1 counters on it.
Results
Infinite +1/+1 counters on Pentavus. Infinite colorless mana. Infinite creature tokens. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite mana artifacts you control can produce. Infinite sacrifice triggers. Infinite untap of artifacts you control.

Omarthis, Ghostfire Initiate
0.19% of 2151 decks 4 decks
Karn, Silver Golem
0.30% of 1013 decks 3 decks
Gandalf the White
0.03% of 2938 decks 1 decks
Reaper King
0.02% of 5799 decks 1 decks
Imotekh the Stormlord
0.01% of 6783 decks 1 decks
Liberator, Urza's Battlethopter
0.04% of 2779 decks 1 decks
Kozilek, the Great Distortion
0.02% of 5820 decks 1 decks
Magda, Brazen Outlaw
0.01% of 12613 decks 1 decks
Marvin, Murderous Mimic
0.10% of 974 decks 1 decks
New Cards
Radiant Lotus
25% of 4 decks +25% synergy
High Synergy Cards
Dross Scorpion
100% of 14 decks +100% synergy
Triskelion
86% of 14 decks +85% synergy
Ashnod's Altar
86% of 14 decks +78% synergy
All Is Dust
71% of 14 decks +70% synergy
Inventors' Fair
71% of 14 decks +68% synergy
Foundry Inspector
71% of 14 decks +67% synergy
Buried Ruin
71% of 14 decks +67% synergy
Shrine of the Forsaken Gods
64% of 14 decks +63% synergy
Forsaken Monument
64% of 14 decks +63% synergy
Urza's Tower
64% of 14 decks +62% synergy
Top Cards
Scrap Trawler
64% of 14 decks +62% synergy
Myr Retriever
64% of 14 decks +62% synergy
Mystic Forge
64% of 14 decks +61% synergy
Triskelavus
57% of 14 decks +57% synergy
Nim Deathmantle
57% of 14 decks +57% synergy
Rings of Brighthearth
57% of 14 decks +56% synergy
Jhoira's Familiar
57% of 14 decks +55% synergy
Walking Ballista
57% of 14 decks +55% synergy
Sensei's Divining Top
57% of 14 decks +52% synergy
Thopter Squadron
50% of 14 decks +50% synergy
Game Changers
Mana Vault
36% of 14 decks +30% synergy
Ancient Tomb
29% of 14 decks +18% synergy
Grim Monolith
21% of 14 decks +19% synergy
Creatures
Kuldotha Forgemaster
50% of 14 decks +49% synergy
Arcbound Ravager
43% of 14 decks +42% synergy
Metalworker
43% of 14 decks +42% synergy
Junk Diver
43% of 14 decks +42% synergy
Liberator, Urza's Battlethopter
43% of 14 decks +42% synergy
Steel Overseer
43% of 14 decks +41% synergy
Myr Battlesphere
43% of 14 decks +41% synergy
Solemn Simulacrum
43% of 14 decks +29% synergy
Workhorse
36% of 14 decks +36% synergy
Voltaic Construct
36% of 14 decks +36% synergy
Cryptic Trilobite
36% of 14 decks +35% synergy
Arcbound Crusher
36% of 14 decks +35% synergy
Hangarback Walker
36% of 14 decks +35% synergy
Wurmcoil Engine
36% of 14 decks +34% synergy
Syr Ginger, the Meal Ender
33% of 12 decks +33% synergy
Karn, Silver Golem
29% of 14 decks +28% synergy
Arcbound Reclaimer
29% of 14 decks +28% synergy
Hexavus
29% of 14 decks +28% synergy
Myr Welder
29% of 14 decks +28% synergy
Workshop Assistant
29% of 14 decks +28% synergy
Stonecoil Serpent
29% of 14 decks +27% synergy
Shimmer Myr
29% of 14 decks +27% synergy
Threefold Thunderhulk
27% of 11 decks +26% synergy
Skittering Cicada
23% of 13 decks +22% synergy
Drillworks Mole
21% of 14 decks +21% synergy
Arcbound Worker
21% of 14 decks +21% synergy
Patchwork Automaton
21% of 14 decks +21% synergy
Endless One
21% of 14 decks +21% synergy
Karn, Legacy Reforged
21% of 14 decks +21% synergy
Steel Hellkite
21% of 14 decks +20% synergy
Palladium Myr
21% of 14 decks +19% synergy
Instants
Null Elemental Blast
43% of 7 decks +42% synergy
Scour from Existence
29% of 14 decks +28% synergy
Utility Artifacts
Blasting Station
50% of 14 decks +49% synergy
Dreamstone Hedron
50% of 14 decks +49% synergy
Sculpting Steel
50% of 14 decks +48% synergy
Unwinding Clock
50% of 14 decks +47% synergy
Phyrexian Altar
50% of 14 decks +46% synergy
Salvaging Station
43% of 14 decks +43% synergy
Myr Turbine
43% of 14 decks +43% synergy
Animation Module
43% of 14 decks +42% synergy
Blade of the Bloodchief
43% of 14 decks +42% synergy
Voltaic Key
43% of 14 decks +42% synergy
Staff of Domination
43% of 14 decks +41% synergy
Cloud Key
43% of 14 decks +41% synergy
Mind Stone
43% of 14 decks +26% synergy
Tarrian's Soulcleaver
36% of 11 decks +35% synergy
Grinding Station
36% of 14 decks +35% synergy
Mycosynth Lattice
36% of 14 decks +35% synergy
Skullclamp
36% of 14 decks +24% synergy
Mirrorworks
29% of 14 decks +28% synergy
Semblance Anvil
29% of 14 decks +28% synergy
Spine of Ish Sah
29% of 14 decks +28% synergy
Helm of Awakening
29% of 14 decks +28% synergy
Mirage Mirror
29% of 14 decks +27% synergy
Hedron Archive
29% of 14 decks +26% synergy
Flayer Husk
21% of 14 decks +21% synergy
Prototype Portal
21% of 14 decks +21% synergy
Ugin's Nexus
21% of 14 decks +21% synergy
Retrofitter Foundry
21% of 14 decks +21% synergy
Planar Bridge
21% of 14 decks +21% synergy
Heartstone
21% of 14 decks +21% synergy
The Immortal Sun
21% of 14 decks +21% synergy
Umbral Mantle
21% of 14 decks +21% synergy
Trading Post
21% of 14 decks +20% synergy
Nevinyrral's Disk
21% of 14 decks +20% synergy
Darksteel Forge
21% of 14 decks +20% synergy
Moonsilver Key
21% of 14 decks +20% synergy
Ichor Wellspring
21% of 14 decks +20% synergy
Altar of Dementia
21% of 14 decks +19% synergy
Expedition Map
21% of 14 decks +18% synergy
The Ozolith
21% of 14 decks +18% synergy
Aetherflux Reservoir
21% of 14 decks +18% synergy
Panharmonicon
21% of 14 decks +17% synergy
Lightning Greaves
21% of 14 decks -4% synergy
Enchantments
Ugin's Mastery
23% of 13 decks +23% synergy
Planeswalkers
Ugin, the Ineffable
43% of 14 decks +41% synergy
Karn, the Great Creator
29% of 14 decks +27% synergy
Ugin, the Spirit Dragon
29% of 14 decks +27% synergy
Utility Lands
War Room
64% of 14 decks +58% synergy
Reliquary Tower
64% of 14 decks +35% synergy
Urza's Power Plant
57% of 14 decks +55% synergy
Urza's Mine
57% of 14 decks +55% synergy
Temple of the False God
57% of 14 decks +48% synergy
Zhalfirin Void
50% of 14 decks +49% synergy
Darksteel Citadel
50% of 14 decks +46% synergy
Sanctum of Ugin
43% of 14 decks +42% synergy
Urza's Workshop
43% of 14 decks +42% synergy
Urza's Saga
43% of 14 decks +36% synergy
Rogue's Passage
43% of 14 decks +23% synergy
Tomb of the Spirit Dragon
36% of 14 decks +35% synergy
Arcane Lighthouse
36% of 14 decks +34% synergy
Homeward Path
36% of 14 decks +34% synergy
Karn's Bastion
36% of 14 decks +31% synergy
Urza's Factory
29% of 14 decks +28% synergy
Drannith Ruins
29% of 14 decks +28% synergy
Arch of Orazca
29% of 14 decks +28% synergy
Tyrite Sanctum
29% of 14 decks +27% synergy
Scavenger Grounds
29% of 14 decks +25% synergy
Scorched Ruins
21% of 14 decks +21% synergy
Crawling Barrens
21% of 14 decks +21% synergy
Blasted Landscape
21% of 14 decks +21% synergy
Sea Gate Wreckage
21% of 14 decks +21% synergy
Mage-Ring Network
21% of 14 decks +21% synergy
Mirrorpool
21% of 14 decks +21% synergy
Eye of Ugin
21% of 14 decks +21% synergy
Forge of Heroes
21% of 14 decks +21% synergy
Crystal Vein
21% of 14 decks +20% synergy
Guildless Commons
21% of 14 decks +20% synergy
Mikokoro, Center of the Sea
21% of 14 decks +20% synergy
Bonders' Enclave
21% of 14 decks +19% synergy
Treasure Vault
21% of 14 decks +19% synergy
Geier Reach Sanitarium
21% of 14 decks +18% synergy
Mana Artifacts
Sol Ring
100% of 14 decks +16% synergy
Basalt Monolith
64% of 14 decks +62% synergy
Thran Dynamo
64% of 14 decks +59% synergy
Gilded Lotus
57% of 14 decks +54% synergy
Liquimetal Torque
50% of 14 decks +47% synergy
Everflowing Chalice
50% of 14 decks +46% synergy
Mana Crypt
43% of 14 decks +37% synergy
Thought Vessel
36% of 14 decks +19% synergy
Blinkmoth Urn
21% of 14 decks +21% synergy
Coveted Jewel
21% of 14 decks +20% synergy
Chromatic Orrery
21% of 14 decks +20% synergy
Worn Powerstone
21% of 14 decks +19% synergy
Arcane Signet
21% of 14 decks -51% synergy
Lands
The Mycosynth Gardens
21% of 14 decks +20% synergy