Othelm, Sigardian Outcast + Hornet Queen + Intruder Alarm + Ashnod's Altar

Othelm, Sigardian Outcast
Hornet Queen
Intruder Alarm
Ashnod's Altar

Requires
Othelm, Sigardian Outcast must be on the battlefield. Hornet Queen must be on the battlefield. Intruder Alarm must be on the battlefield. Ashnod's Altar must be on the battlefield. Othelm does not have summoning sickness.
Steps
  1. Activate Ashnod's Altar by sacrificing Hornet Queen, adding cc.
  2. Activate Othelm by paying 2 and tapping it, returning Hornet Queen from your graveyard to the battlefield tapped.
  3. Hornet Queen enters the battlefield, triggering itself and Intruder Alarm.
  4. Resolve the Intruder Alarm trigger, untapping all creatures.
  5. Resolve the Hornet Queen trigger, creating four 1/1 Insect creature tokens.
  6. The Insect 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 sacrifice triggers. Infinite tap triggers. Infinite untap of all creatures.

Top Commanders (1)
Cecily, Haunted Mage // Othelm, Sigardian Outcast
0.75% of 2013 decks 15 decks
High Synergy Cards (10)
Inspired Ultimatum
93% of 15 decks +92% synergy
Cruel Celebrant
87% of 15 decks +87% synergy
Angel of Despair
87% of 15 decks +86% synergy
Emergent Ultimatum
87% of 15 decks +84% synergy
Conflux
87% of 15 decks +82% synergy
Marchesa's Smuggler
80% of 15 decks +80% synergy
Great Oak Guardian
80% of 15 decks +80% synergy
Bounding Krasis
80% of 15 decks +80% synergy
Judith, the Scourge Diva
80% of 15 decks +80% synergy
Zulaport Cutthroat
80% of 15 decks +79% synergy
Top Cards (10)
Ruinous Ultimatum
87% of 15 decks +77% synergy
Eerie Ultimatum
87% of 15 decks +76% synergy
Rampant Growth
87% of 15 decks +62% synergy
Myr Battlesphere
87% of 15 decks +83% synergy
Corridor Monitor
80% of 15 decks +80% synergy
Composite Golem
80% of 15 decks +79% synergy
Spiteful Prankster
73% of 15 decks +73% synergy
Hissing Iguanar
73% of 15 decks +73% synergy
Cathodion
73% of 15 decks +73% synergy
Sky Hussar
73% of 15 decks +73% synergy
Creatures (11)
Deep Forest Hermit
73% of 15 decks +73% synergy
Village Bell-Ringer
73% of 15 decks +73% synergy
Azure Mage
67% of 15 decks +67% synergy
Aeon Chronicler
67% of 15 decks +67% synergy
Faerie Formation
67% of 15 decks +66% synergy
Transmogrifying Licid
60% of 15 decks +60% synergy
Triskaidekaphile
27% of 15 decks +26% synergy
Mulldrifter
20% of 15 decks +18% synergy
Eternal Witness
20% of 15 decks +15% synergy
Seedborn Muse
20% of 15 decks +14% synergy
Esper Sentinel
20% of 15 decks +11% synergy
Instants (15)
Dismantling Blow
67% of 15 decks +67% synergy
Rending Vines
60% of 15 decks +60% synergy
Keep Watch
60% of 15 decks +60% synergy
Mystic Melting
53% of 15 decks +53% synergy
Aura Blast
53% of 15 decks +53% synergy
Crop Rotation
53% of 15 decks +48% synergy
Overwhelming Intellect
47% of 15 decks +47% synergy
Counterspell
33% of 15 decks +12% synergy
Swords to Plowshares
27% of 15 decks -14% synergy
Deflecting Swat
20% of 15 decks +11% synergy
Mana Drain
20% of 15 decks +11% synergy
Fierce Guardianship
20% of 15 decks +8% synergy
Vampiric Tutor
20% of 15 decks +2% synergy
Teferi's Protection
20% of 15 decks +1% synergy
Cyclonic Rift
20% of 15 decks -2% synergy
Sorceries (20)
Beck // Call
73% of 15 decks +73% synergy
Creeping Renaissance
73% of 15 decks +73% synergy
Decree of Pain
73% of 15 decks +73% synergy
Brilliant Ultimatum
73% of 15 decks +72% synergy
Cultivate
73% of 15 decks +32% synergy
Cleansing Wildfire
67% of 15 decks +67% synergy
Overflowing Insight
67% of 15 decks +66% synergy
Migration Path
67% of 15 decks +63% synergy
Diabolic Tutor
67% of 15 decks +63% synergy
Path to the Festival
60% of 15 decks +60% synergy
Dire-Strain Rampage
60% of 15 decks +60% synergy
Rush of Knowledge
53% of 15 decks +53% synergy
Tranquil Path
40% of 15 decks +40% synergy
Demonic Tutor
27% of 15 decks +5% synergy
Enter the Infinite
20% of 15 decks +20% synergy
Treasure Cruise
20% of 15 decks +19% synergy
Cruel Ultimatum
20% of 15 decks +18% synergy
Approach of the Second Sun
20% of 15 decks +18% synergy
In Garruk's Wake
20% of 15 decks +17% synergy
Genesis Ultimatum
20% of 15 decks +15% synergy
Utility Artifacts (5)
Thornbite Staff
73% of 15 decks +73% synergy
Clock of Omens
67% of 15 decks +65% synergy
Ashnod's Transmogrant
60% of 15 decks +60% synergy
Krark-Clan Ironworks
60% of 15 decks +60% synergy
Thran Forge
47% of 15 decks +47% synergy
Enchantments (7)
Phyrexian Scriptures
60% of 15 decks +58% synergy
Rhystic Study
47% of 15 decks +22% synergy
Prismatic Omen
27% of 15 decks +23% synergy
Mystic Remora
27% of 15 decks +15% synergy
Teferi's Ageless Insight
20% of 15 decks +19% synergy
Propaganda
20% of 15 decks +13% synergy
Smothering Tithe
20% of 15 decks -2% synergy
Utility Lands (6)
Reliquary Tower
93% of 15 decks +71% synergy
Emergence Zone
80% of 15 decks +79% synergy
Buried Ruin
80% of 15 decks +78% synergy
Maze of Ith
73% of 15 decks +71% synergy
Labyrinth of Skophos
67% of 15 decks +66% synergy
Cascading Cataracts
67% of 15 decks +52% synergy
Mana Artifacts (11)
Arcane Signet
100% of 15 decks +28% synergy
Thought Vessel
100% of 15 decks +94% synergy
Crowded Crypt
73% of 15 decks +73% synergy
Darksteel Ingot
73% of 15 decks +69% synergy
Commander's Sphere
73% of 15 decks +51% synergy
Gemstone Array
67% of 15 decks +66% synergy
Sol Ring
53% of 15 decks -23% synergy
Prismatic Lens
47% of 15 decks +46% synergy
Fellwar Stone
33% of 15 decks +1% synergy
Chromatic Lantern
27% of 15 decks -25% synergy
Mind Stone
20% of 15 decks +17% synergy
Lands (26)
Exotic Orchard
93% of 15 decks +32% synergy
Command Tower
93% of 15 decks +6% synergy
Jetmir's Garden
71% of 7 decks +44% synergy
Thriving Moor
67% of 15 decks +65% synergy
Thriving Isle
67% of 15 decks +64% synergy
Thriving Grove
67% of 15 decks +64% synergy
Thriving Bluff
60% of 15 decks +58% synergy
Thriving Heath
60% of 15 decks +58% synergy
Spara's Headquarters
57% of 7 decks +29% synergy
Raffine's Tower
43% of 7 decks +23% synergy
Godless Shrine
27% of 15 decks -1% synergy
Blood Crypt
20% of 15 decks -5% synergy
Sacred Foundry
20% of 15 decks -6% synergy
Zagoth Triome
20% of 15 decks -6% synergy
Scalding Tarn
20% of 15 decks -6% synergy
Watery Grave
20% of 15 decks -7% synergy
Steam Vents
20% of 15 decks -8% synergy
Arid Mesa
20% of 15 decks -8% synergy
Marsh Flats
20% of 15 decks -8% synergy
Verdant Catacombs
20% of 15 decks -10% synergy
Hallowed Fountain
20% of 15 decks -10% synergy
Misty Rainforest
20% of 15 decks -10% synergy
Overgrown Tomb
20% of 15 decks -12% synergy
Stomping Ground
20% of 15 decks -12% synergy
Breeding Pool
20% of 15 decks -13% synergy
Temple Garden
20% of 15 decks -13% synergy