Workhorse + Nim Deathmantle + Ashnod's Altar + Purphoros, God of the Forge

Workhorse
Nim Deathmantle
Ashnod's Altar
Purphoros, God of the Forge

Requires
Workhorse must be on the battlefield. Nim Deathmantle must be on the battlefield. Ashnod's Altar must be on the battlefield. Purphoros, God of the Forge must be on the battlefield. Nim Deathmantle attached to Workhorse.
Steps
  1. Activate Workhorse by removing four +1/+1 counters, adding .
  2. Activate Ashnod's Altar by sacrificing Workhorse, adding .
  3. Workhorse dies, triggering Nim Deathmantle, causing you to pay 4 to return Workhorse from your graveyard to the battlefield, and attach Nim Deathmantle to it.
  4. Workhorse enters the battlefield with four +1/+1 counters on it.
  5. Purphoros triggers, dealing 2 damages to each opponent.
  6. Repeat.
Results
Infinite colorless mana. Infinite damage. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

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0.24% of 3286 decks 8 decks
Purphoros, God of the Forge
0.05% of 3794 decks 2 decks
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0.65% of 155 decks 1 decks
Bjorna, Nightfall Alchemist // Othelm, Sigardian Outcast
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Zinnia, Valley's Voice
0.01% of 6777 decks 1 decks
High Synergy Cards
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88% of 8 decks +78% synergy
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75% of 8 decks +75% synergy
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Priest of Gix
62% of 8 decks +62% synergy
Sling-Gang Lieutenant
62% of 8 decks +62% synergy
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64% of 14 decks +61% synergy
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62% of 8 decks +60% synergy
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57% of 7 decks +57% synergy
Top Cards
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62% of 8 decks +53% synergy
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Thornbite Staff
50% of 14 decks +49% synergy
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50% of 8 decks +48% synergy
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Creatures
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50% of 6 decks +50% synergy
Woe Strider
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43% of 14 decks +42% synergy
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43% of 14 decks +37% synergy
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43% of 14 decks +29% synergy
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38% of 8 decks +37% synergy
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38% of 8 decks +37% synergy
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38% of 8 decks +37% synergy
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38% of 8 decks +37% synergy
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38% of 8 decks +34% synergy
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38% of 8 decks +33% synergy
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38% of 8 decks +32% synergy
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36% of 14 decks +35% synergy
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36% of 14 decks +34% synergy
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36% of 14 decks +34% synergy
Goblin Matron
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36% of 14 decks +30% synergy
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29% of 14 decks +28% synergy
Junk Diver
29% of 14 decks +28% synergy
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29% of 14 decks +27% synergy
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29% of 14 decks +27% synergy
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Dockside Extortionist
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21% of 14 decks +20% synergy
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21% of 14 decks +20% synergy
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21% of 14 decks +20% synergy
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21% of 14 decks +20% synergy
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21% of 14 decks +20% synergy
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43% of 14 decks +39% synergy
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Lands
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