Pentavus
Cauldron of Souls
Clock of Omens
Krark-Clan Ironworks
1

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
Pentavus does not have a -1/-1 counter on it.

   Steps

How does this combo work?
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

What do I get from this combo?
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
0.18% of 2267 decks 4 decks
Karn, Silver Golem
0.29% of 1044 decks 3 decks
Marvin, Murderous Mimic
0.10% of 1044 decks 1 decks
Gandalf the White
0.03% of 3041 decks 1 decks
Karn, Legacy Reforged
0.02% of 5128 decks 1 decks
Liberator, Urza's Battlethopter
0.04% of 2800 decks 1 decks
Reaper King
0.02% of 5895 decks 1 decks
Imotekh the Stormlord
0.01% of 6862 decks 1 decks
The Capitoline Triad
0.04% of 2226 decks 1 decks
Traxos, Scourge of Kroog
0.05% of 1870 decks 1 decks
Magda, Brazen Outlaw
0.01% of 12929 decks 1 decks
Kozilek, the Great Distortion
0.02% of 5854 decks 1 decks
New Cards
Ugin, Eye of the Storms
33% of 3 decks +32% synergy
High Synergy Cards
Dross Scorpion
100% of 17 decks +100% synergy
Ashnod's Altar
88% of 17 decks +81% synergy
Inventors' Fair
76% of 17 decks +73% synergy
Foundry Inspector
76% of 17 decks +72% synergy
Triskelion
71% of 17 decks +70% synergy
Forsaken Monument
71% of 17 decks +69% synergy
Scrap Trawler
71% of 17 decks +69% synergy
Myr Retriever
71% of 17 decks +69% synergy
Buried Ruin
71% of 17 decks +66% synergy
War Room
71% of 17 decks +64% synergy
Top Cards
Rings of Brighthearth
65% of 17 decks +63% synergy
All Is Dust
65% of 17 decks +63% synergy
Mystic Forge
65% of 17 decks +62% synergy
Nim Deathmantle
59% of 17 decks +58% synergy
Walking Ballista
59% of 17 decks +56% synergy
Sensei's Divining Top
59% of 17 decks +54% synergy
Voltaic Key
53% of 17 decks +52% synergy
Jhoira's Familiar
53% of 17 decks +51% synergy
Staff of Domination
53% of 17 decks +51% synergy
Sculpting Steel
53% of 17 decks +51% synergy
Game Changers
Mana Vault
35% of 17 decks +29% synergy
Ancient Tomb
35% of 17 decks +25% synergy
Grim Monolith
24% of 17 decks +22% synergy
Creatures
Triskelavus
47% of 17 decks +47% synergy
Thopter Squadron
47% of 17 decks +47% synergy
Arcbound Ravager
47% of 17 decks +47% synergy
Junk Diver
47% of 17 decks +46% synergy
Kuldotha Forgemaster
47% of 17 decks +46% synergy
Myr Battlesphere
47% of 17 decks +45% synergy
Glaring Fleshraker
44% of 9 decks +43% synergy
Metalworker
41% of 17 decks +41% synergy
Hangarback Walker
41% of 17 decks +40% synergy
Steel Overseer
41% of 17 decks +40% synergy
Solemn Simulacrum
41% of 17 decks +28% synergy
Arcbound Crusher
35% of 17 decks +35% synergy
Workshop Assistant
35% of 17 decks +35% synergy
Stonecoil Serpent
35% of 17 decks +34% synergy
Liberator, Urza's Battlethopter
35% of 17 decks +34% synergy
Wurmcoil Engine
35% of 17 decks +34% synergy
Syr Ginger, the Meal Ender
33% of 15 decks +33% synergy
Workhorse
29% of 17 decks +29% synergy
Voltaic Construct
29% of 17 decks +29% synergy
Arcbound Reclaimer
29% of 17 decks +29% synergy
Hexavus
29% of 17 decks +29% synergy
Myr Welder
29% of 17 decks +29% synergy
Cryptic Trilobite
29% of 17 decks +29% synergy
Shimmer Myr
29% of 17 decks +28% synergy
Palladium Myr
29% of 17 decks +27% synergy
Karn, Silver Golem
24% of 17 decks +23% synergy
Drillworks Mole
24% of 17 decks +23% synergy
Arcbound Worker
24% of 17 decks +23% synergy
Patchwork Automaton
24% of 17 decks +23% synergy
Endless One
24% of 17 decks +23% synergy
Mycosynth Golem
24% of 17 decks +23% synergy
Kozilek, Butcher of Truth
24% of 17 decks +22% synergy
Threefold Thunderhulk
21% of 14 decks +21% synergy
Skittering Cicada
19% of 16 decks +18% synergy
Cathodion
18% of 17 decks +17% synergy
Painter's Servant
18% of 17 decks +17% synergy
Scarecrone
18% of 17 decks +17% synergy
Towashi Guide-Bot
18% of 17 decks +17% synergy
Karn, Legacy Reforged
18% of 17 decks +17% synergy
Steel Hellkite
18% of 17 decks +16% synergy
Instants
Null Elemental Blast
40% of 10 decks +39% synergy
Scour from Existence
24% of 17 decks +23% synergy
Utility Artifacts
Unwinding Clock
53% of 17 decks +50% synergy
Salvaging Station
47% of 17 decks +47% synergy
Blasting Station
47% of 17 decks +47% synergy
Dreamstone Hedron
47% of 17 decks +46% synergy
Cloud Key
47% of 17 decks +45% synergy
Animation Module
41% of 17 decks +41% synergy
Blade of the Bloodchief
41% of 17 decks +40% synergy
Phyrexian Altar
41% of 17 decks +37% synergy
Tarrian's Soulcleaver
36% of 14 decks +34% synergy
Myr Turbine
35% of 17 decks +35% synergy
Grinding Station
35% of 17 decks +35% synergy
Skullclamp
35% of 17 decks +23% synergy
Mind Stone
35% of 17 decks +19% synergy
Prototype Portal
29% of 17 decks +29% synergy
Ugin's Nexus
29% of 17 decks +29% synergy
Throne of Geth
29% of 17 decks +29% synergy
Mirrorworks
29% of 17 decks +29% synergy
Mycosynth Lattice
29% of 17 decks +29% synergy
Helm of Awakening
29% of 17 decks +29% synergy
Altar of Dementia
29% of 17 decks +27% synergy
Hedron Archive
29% of 17 decks +27% synergy
Retrofitter Foundry
24% of 17 decks +23% synergy
Semblance Anvil
24% of 17 decks +23% synergy
Spine of Ish Sah
24% of 17 decks +23% synergy
Trading Post
24% of 17 decks +22% synergy
Manifold Key
24% of 17 decks +22% synergy
Mirage Mirror
24% of 17 decks +22% synergy
Expedition Map
24% of 17 decks +21% synergy
The Ozolith
24% of 17 decks +20% synergy
Summoning Station
18% of 17 decks +18% synergy
Flayer Husk
18% of 17 decks +18% synergy
Mindslaver
18% of 17 decks +17% synergy
Planar Bridge
18% of 17 decks +17% synergy
Heartstone
18% of 17 decks +17% synergy
The Immortal Sun
18% of 17 decks +17% synergy
Umbral Mantle
18% of 17 decks +17% synergy
Mimic Vat
18% of 17 decks +17% synergy
Nevinyrral's Disk
18% of 17 decks +17% synergy
Darksteel Forge
18% of 17 decks +16% synergy
Moonsilver Key
18% of 17 decks +16% synergy
Ichor Wellspring
18% of 17 decks +16% synergy
Maskwood Nexus
18% of 17 decks +15% synergy
Aetherflux Reservoir
18% of 17 decks +14% synergy
Panharmonicon
18% of 17 decks +14% synergy
Idol of Oblivion
18% of 17 decks +13% synergy
Lightning Greaves
18% of 17 decks -7% synergy
Enchantments
Ugin's Mastery
19% of 16 decks +18% synergy
Planeswalkers
Ugin, the Ineffable
47% of 17 decks +45% synergy
Karn, the Great Creator
35% of 17 decks +34% synergy
Ugin, the Spirit Dragon
29% of 17 decks +28% synergy
Utility Lands
Shrine of the Forsaken Gods
65% of 17 decks +63% synergy
Urza's Tower
65% of 17 decks +63% synergy
Reliquary Tower
65% of 17 decks +35% synergy
Urza's Power Plant
59% of 17 decks +57% synergy
Urza's Mine
59% of 17 decks +57% synergy
Darksteel Citadel
53% of 17 decks +49% synergy
Temple of the False God
53% of 17 decks +43% synergy
Rogue's Passage
53% of 17 decks +33% synergy
Urza's Workshop
47% of 17 decks +46% synergy
Tomb of the Spirit Dragon
47% of 17 decks +46% synergy
Urza's Saga
47% of 17 decks +40% synergy
Sanctum of Ugin
41% of 17 decks +41% synergy
Zhalfirin Void
41% of 17 decks +40% synergy
Karn's Bastion
35% of 17 decks +30% synergy
Arcane Lighthouse
29% of 17 decks +28% synergy
Homeward Path
29% of 17 decks +28% synergy
Scavenger Grounds
29% of 17 decks +26% synergy
Geier Reach Sanitarium
29% of 17 decks +26% synergy
Urza's Factory
24% of 17 decks +23% synergy
Drannith Ruins
24% of 17 decks +23% synergy
Arch of Orazca
24% of 17 decks +23% synergy
Tyrite Sanctum
24% of 17 decks +22% synergy
Treasure Vault
24% of 17 decks +21% synergy
Miren, the Moaning Well
18% of 17 decks +17% synergy
Scorched Ruins
18% of 17 decks +17% synergy
Crawling Barrens
18% of 17 decks +17% synergy
Phyrexia's Core
18% of 17 decks +17% synergy
Ruins of Oran-Rief
18% of 17 decks +17% synergy
Blasted Landscape
18% of 17 decks +17% synergy
Sea Gate Wreckage
18% of 17 decks +17% synergy
Mage-Ring Network
18% of 17 decks +17% synergy
Mirrorpool
18% of 17 decks +17% synergy
Eye of Ugin
18% of 17 decks +17% synergy
Mishra's Factory
18% of 17 decks +17% synergy
Forge of Heroes
18% of 17 decks +17% synergy
Crystal Vein
18% of 17 decks +17% synergy
Blast Zone
18% of 17 decks +16% synergy
Witch's Clinic
18% of 17 decks +16% synergy
Guildless Commons
18% of 17 decks +16% synergy
Mikokoro, Center of the Sea
18% of 17 decks +16% synergy
Bonders' Enclave
18% of 17 decks +15% synergy
Thespian's Stage
18% of 17 decks +15% synergy
High Market
18% of 17 decks +15% synergy
Mana Artifacts
Sol Ring
100% of 17 decks +16% synergy
Thran Dynamo
71% of 17 decks +66% synergy
Basalt Monolith
65% of 17 decks +62% synergy
Gilded Lotus
59% of 17 decks +56% synergy
Everflowing Chalice
59% of 17 decks +54% synergy
Liquimetal Torque
41% of 17 decks +38% synergy
Mana Crypt
35% of 17 decks +30% synergy
Thought Vessel
35% of 17 decks +18% synergy
Coveted Jewel
24% of 17 decks +22% synergy
Worn Powerstone
24% of 17 decks +21% synergy
Blinkmoth Urn
18% of 17 decks +17% synergy
Chromatic Orrery
18% of 17 decks +16% synergy
Arcane Signet
18% of 17 decks -55% synergy
Lands
The Mycosynth Gardens
35% of 17 decks +33% synergy
Urza's Cave
30% of 10 decks +27% synergy
Myriad Landscape
18% of 17 decks -1% synergy