Othelm, Sigardian Outcast + Myr Battlesphere + Intruder Alarm + Krark-Clan Ironworks

Othelm, Sigardian Outcast
Myr Battlesphere
Intruder Alarm
Krark-Clan Ironworks

Requires
Othelm, Sigardian Outcast must be on the battlefield. Myr Battlesphere must be on the battlefield. Intruder Alarm must be on the battlefield. Krark-Clan Ironworks must be on the battlefield. Othelm does not have summoning sickness.
Steps
  1. Activate Krark-Clan Ironworks by sacrificing Myr Battlesphere, adding .
  2. Activate Othelm by paying 2 and tapping it, returning Myr Battlesphere from your graveyard to the battlefield tapped.
  3. Myr Battlesphere enters the battlefield, triggering itself and Intruder Alarm.
  4. Resolve the Intruder Alarm trigger, untapping all creatures.
  5. Resolve the Myr Battlesphere trigger, creating four 1/1 Myr artifact creature tokens.
  6. The Myr tokens enter the battlefield, triggering Intruder Alarm four times, untapping all creatures.
  7. Repeat.
Results
Infinite colorless mana. Infinite creature tokens. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite mana creatures you control can produce. Infinite sacrifice triggers. Infinite tap triggers. Infinite untap of all creatures.

Cecily, Haunted Mage // Othelm, Sigardian Outcast
0.48% of 1894 decks 9 decks
Bjorna, Nightfall Alchemist // Othelm, Sigardian Outcast
1.82% of 275 decks 5 decks
Hargilde, Kindly Runechanter // Othelm, Sigardian Outcast
1.54% of 65 decks 1 decks
High Synergy Cards
Brilliant Ultimatum
89% of 9 decks +88% synergy
Phyrexian Scriptures
89% of 9 decks +88% synergy
Judith, the Scourge Diva
89% of 9 decks +87% synergy
Cathodion
87% of 15 decks +86% synergy
Decree of Pain
89% of 9 decks +86% synergy
Ashnod's Altar
93% of 15 decks +86% synergy
Conflux
89% of 9 decks +85% synergy
Cruel Celebrant
89% of 9 decks +80% synergy
Zulaport Cutthroat
89% of 9 decks +79% synergy
Composite Golem
78% of 9 decks +77% synergy
Top Cards
Crowded Crypt
89% of 9 decks +87% synergy
Eerie Ultimatum
89% of 9 decks +76% synergy
Ruinous Ultimatum
89% of 9 decks +71% synergy
Angel of Despair
78% of 9 decks +76% synergy
Emergent Ultimatum
78% of 9 decks +75% synergy
Corridor Monitor
73% of 15 decks +73% synergy
Commander's Sphere
73% of 15 decks +58% synergy
Diabolic Tutor
67% of 9 decks +60% synergy
Thornbite Staff
60% of 15 decks +59% synergy
Village Bell-Ringer
60% of 15 decks +59% synergy
Creatures
Marchesa's Smuggler
57% of 14 decks +57% synergy
Hissing Iguanar
57% of 14 decks +57% synergy
Transmogrifying Licid
53% of 15 decks +53% synergy
Sky Hussar
53% of 15 decks +53% synergy
Bounding Krasis
53% of 15 decks +53% synergy
Aeon Chronicler
53% of 15 decks +53% synergy
Great Oak Guardian
53% of 15 decks +53% synergy
Deep Forest Hermit
53% of 15 decks +52% synergy
Hornet Queen
53% of 15 decks +51% synergy
Spiteful Prankster
50% of 14 decks +50% synergy
Azure Mage
47% of 15 decks +47% synergy
Faerie Formation
47% of 15 decks +46% synergy
Scrap Welder
44% of 9 decks +44% synergy
Enthusiastic Mechanaut
44% of 9 decks +40% synergy
Drumbellower
40% of 10 decks +38% synergy
Emry, Lurker of the Loch
40% of 15 decks +36% synergy
Solemn Simulacrum
40% of 15 decks +26% synergy
Junk Diver
33% of 15 decks +33% synergy
Lonis, Cryptozoologist
33% of 15 decks +32% synergy
Wurmcoil Engine
33% of 15 decks +31% synergy
Scrap Trawler
33% of 15 decks +31% synergy
Blood Artist
33% of 9 decks +22% synergy
Myr Retriever
27% of 15 decks +25% synergy
Teshar, Ancestor's Apostle
27% of 15 decks +24% synergy
Foundry Inspector
27% of 15 decks +22% synergy
Etherium Sculptor
27% of 15 decks +21% synergy
Phyrexian Metamorph
27% of 15 decks +20% synergy
Combustible Gearhulk
21% of 14 decks +19% synergy
Goblin Welder
21% of 14 decks +19% synergy
Reckless Fireweaver
21% of 14 decks +17% synergy
Filigree Familiar
20% of 15 decks +20% synergy
Workshop Assistant
20% of 15 decks +19% synergy
Triplicate Titan
20% of 15 decks +19% synergy
Phyrexian Triniform
20% of 15 decks +19% synergy
Shimmer Myr
20% of 15 decks +18% synergy
Oswald Fiddlebender
20% of 15 decks +18% synergy
Meteor Golem
20% of 15 decks +18% synergy
Burnished Hart
20% of 15 decks +16% synergy
Seedborn Muse
20% of 15 decks +12% synergy
Instants
Rending Vines
53% of 15 decks +53% synergy
Mystic Melting
47% of 15 decks +47% synergy
Overwhelming Intellect
47% of 15 decks +47% synergy
Aura Blast
47% of 15 decks +47% synergy
Keep Watch
47% of 15 decks +46% synergy
Dismantling Blow
40% of 15 decks +40% synergy
Crop Rotation
40% of 15 decks +30% synergy
Path to Exile
33% of 15 decks -12% synergy
Teferi's Protection
20% of 15 decks -0% synergy
Counterspell
20% of 15 decks -23% synergy
Sorceries
Rampant Growth
60% of 15 decks +25% synergy
Cultivate
60% of 15 decks +14% synergy
Inspired Ultimatum
57% of 14 decks +56% synergy
Overflowing Insight
53% of 15 decks +53% synergy
Beck // Call
53% of 15 decks +53% synergy
Rush of Knowledge
53% of 15 decks +53% synergy
Cleansing Wildfire
50% of 14 decks +50% synergy
Dire-Strain Rampage
50% of 14 decks +49% synergy
Creeping Renaissance
47% of 15 decks +46% synergy
Migration Path
47% of 15 decks +43% synergy
Path to the Festival
40% of 15 decks +40% synergy
Tranquil Path
33% of 15 decks +33% synergy
Utility Artifacts
Ashnod's Transmogrant
53% of 15 decks +53% synergy
Clock of Omens
53% of 15 decks +52% synergy
Thran Forge
40% of 15 decks +40% synergy
Birthing Pod
27% of 15 decks +24% synergy
Thousand-Year Elixir
20% of 15 decks +18% synergy
Lightning Greaves
20% of 15 decks -5% synergy
Enchantments
Goblin Bombardment
21% of 14 decks +15% synergy
Impact Tremors
21% of 14 decks +12% synergy
Rhystic Study
20% of 15 decks -8% synergy
Utility Lands
Emergence Zone
47% of 15 decks +44% synergy
Reliquary Tower
47% of 15 decks +17% synergy
Maze of Ith
40% of 15 decks +37% synergy
Buried Ruin
40% of 15 decks +35% synergy
Labyrinth of Skophos
33% of 15 decks +33% synergy
Cascading Cataracts
33% of 15 decks +32% synergy
Inventors' Fair
20% of 15 decks +16% synergy
Academy Ruins
20% of 15 decks +15% synergy
Mana Artifacts
Arcane Signet
80% of 15 decks +8% synergy
Gemstone Array
53% of 15 decks +53% synergy
Darksteel Ingot
53% of 15 decks +52% synergy
Thought Vessel
53% of 15 decks +37% synergy
Sol Ring
47% of 15 decks -38% synergy
Prismatic Lens
27% of 15 decks +25% synergy
Chromatic Lantern
20% of 15 decks +10% synergy
Lands
Command Tower
93% of 15 decks +19% synergy
Exotic Orchard
67% of 15 decks +31% synergy
Thriving Moor
56% of 9 decks +53% synergy
Thriving Bluff
36% of 14 decks +33% synergy
Thriving Grove
33% of 15 decks +31% synergy
Thriving Isle
33% of 15 decks +31% synergy
Thriving Heath
33% of 15 decks +31% synergy
Steam Vents
29% of 14 decks -11% synergy
Seaside Citadel
27% of 15 decks +1% synergy
Slagwoods Bridge
21% of 14 decks +19% synergy
Mystic Monastery
21% of 14 decks -5% synergy
Frontier Bivouac
21% of 14 decks -6% synergy
Jungle Shrine
21% of 14 decks -11% synergy
Stomping Ground
21% of 14 decks -20% synergy
Spire of Industry
20% of 15 decks +17% synergy
Razortide Bridge
20% of 15 decks +13% synergy
Flooded Strand
20% of 15 decks +9% synergy
Hallowed Fountain
20% of 15 decks -21% synergy