Animation Module + War Elemental + Ashnod's Altar + Pandemonium

Animation Module
War Elemental
Ashnod's Altar
Pandemonium

Requires
Animation Module must be on the battlefield. War Elemental must be on the battlefield. Ashnod's Altar must be on the battlefield. Pandemonium must be on the battlefield. You have a way to cause a creature with power 1 or greater to enter the battlefield under your control. Mana needed: 1
Steps
  1. Cause a creature to enter the battlefield under your control.
  2. Pandemonium triggers, dealing damage to an opponent equal to the creature's power.
  3. War Elemental's second ability triggers, putting a +1/+1 counter on itself.
  4. Animation Module triggers, causing you to pay 1 to create a 1/1 Servo artifact creature token.
  5. When the Servo enters the battlefield, Pandemonium triggers.
  6. Holding priority, activate Ashnod's Altar by sacrificing the Servo, adding .
  7. Resolve the Pandemonium trigger, dealing 1 damage to an opponent.
  8. Repeat from step 3.
Results
Infinite +1/+1 counters on War Elemental. Infinite colorless mana. Infinite creature tokens. Infinite damage. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

The Red Terror
0.21% of 473 decks 1 decks
Creatures
Phyrexian Devourer
100% of 1 decks +100% synergy
Soul-Scar Mage
100% of 1 decks +99% synergy
Cinder Pyromancer
100% of 1 decks +98% synergy
Immolation Shaman
100% of 1 decks +97% synergy
Laelia, the Blade Reforged
100% of 1 decks +96% synergy
Magebane Lizard
100% of 1 decks +95% synergy
Zo-Zu the Punisher
100% of 1 decks +94% synergy
Foundry Inspector
100% of 1 decks +93% synergy
Harsh Mentor
100% of 1 decks +92% synergy
Terror of the Peaks
100% of 1 decks +90% synergy
Firebrand Archer
100% of 1 decks +89% synergy
Ojer Axonil, Deepest Might
100% of 1 decks +89% synergy
Defiler of Instinct
100% of 1 decks +89% synergy
Roaming Throne
100% of 1 decks +88% synergy
Goblin Engineer
100% of 1 decks +87% synergy
Solphim, Mayhem Dominus
100% of 1 decks +80% synergy
Solemn Simulacrum
100% of 1 decks +75% synergy
Torbran, Thane of Red Fell
100% of 1 decks +71% synergy
Instants
Cast into the Fire
100% of 1 decks +98% synergy
Soul's Fire
100% of 1 decks +96% synergy
Wyll's Reversal
100% of 1 decks +95% synergy
Bolt Bend
100% of 1 decks +84% synergy
Red Elemental Blast
100% of 1 decks +79% synergy
Return the Favor
100% of 1 decks +75% synergy
Tibalt's Trickery
100% of 1 decks +74% synergy
Deflecting Swat
100% of 1 decks +74% synergy
Big Score
100% of 1 decks +72% synergy
Demand Answers
100% of 1 decks +69% synergy
Lightning Bolt
100% of 1 decks +61% synergy
Thrill of Possibility
100% of 1 decks +60% synergy
Abrade
100% of 1 decks +57% synergy
Chaos Warp
100% of 1 decks +36% synergy
Sorceries
Ecstatic Beauty
100% of 1 decks +100% synergy
Hazardous Blast
100% of 1 decks +99% synergy
Rousing Refrain
100% of 1 decks +98% synergy
Hell to Pay
100% of 1 decks +94% synergy
Chandra's Ignition
100% of 1 decks +93% synergy
Tectonic Hazard
100% of 1 decks +90% synergy
Gamble
100% of 1 decks +73% synergy
Vandalblast
100% of 1 decks +59% synergy
Jeska's Will
100% of 1 decks +57% synergy
Faithless Looting
100% of 1 decks +54% synergy
Blasphemous Act
100% of 1 decks +47% synergy
Utility Artifacts
Eternity Vessel
100% of 1 decks +100% synergy
Talon of Pain
100% of 1 decks +100% synergy
Tamiyo's Journal
100% of 1 decks +100% synergy
The Millennium Calendar
100% of 1 decks +100% synergy
Krark-Clan Ironworks
100% of 1 decks +98% synergy
Phyrexian Altar
100% of 1 decks +96% synergy
Lightning Greaves
100% of 1 decks +66% synergy
Swiftfoot Boots
100% of 1 decks +59% synergy
Enchantments
Quest for Pure Flame
100% of 1 decks +98% synergy
All Will Be One
100% of 1 decks +97% synergy
Burning Earth
100% of 1 decks +95% synergy
Roiling Vortex
100% of 1 decks +91% synergy
Warstorm Surge
100% of 1 decks +90% synergy
Manabarbs
100% of 1 decks +90% synergy
Sulfuric Vortex
100% of 1 decks +90% synergy
Planeswalkers
Koth, Fire of Resistance
100% of 1 decks +85% synergy
Utility Lands
Spinerock Knoll
100% of 1 decks +86% synergy
Rogue's Passage
100% of 1 decks +81% synergy
War Room
100% of 1 decks +69% synergy
Mana Artifacts
Mind Stone
100% of 1 decks +60% synergy
Arcane Signet
100% of 1 decks +38% synergy
Sol Ring
100% of 1 decks +14% synergy
Lands
Myriad Landscape
100% of 1 decks +71% synergy