Murderous Redcap + Good-Fortune Unicorn + Ashnod's Altar

Murderous Redcap
Good-Fortune Unicorn
Ashnod's Altar

Requires
Murderous Redcap must be on the battlefield. Good-Fortune Unicorn must be on the battlefield. Ashnod's Altar must be on the battlefield.
Steps
  1. Sacrifice Murderous Redcap to Ashnod's Altar to add .
  2. Murderous Redcap's persist triggers, returning it to the battlefield.
  3. Murderous Redcap returns to the battlefield with a +1/+1 counter and a -1/-1 counter which cancel out.
  4. Murderous Redcap triggers, dealing 2 damage to any target.
  5. Repeat.
Results
Infinite colorless mana. Infinite damage. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Kenrith, the Returned King
0.03% of 21730 decks 7 decks
Tana, the Bloodsower // Tymna the Weaver
0.07% of 2874 decks 2 decks
Garth One-Eye
0.05% of 4116 decks 2 decks
Ravos, Soultender // Tana, the Bloodsower
0.27% of 753 decks 2 decks
Morophon, the Boundless
0.02% of 9913 decks 2 decks
Ramos, Dragon Engine
0.01% of 8646 decks 1 decks
Akiri, Line-Slinger // Reyhan, Last of the Abzan
0.67% of 150 decks 1 decks
Jared Carthalion
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Child of Alara
0.02% of 5227 decks 1 decks
Saskia the Unyielding
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Kyodai, Soul of Kamigawa
0.05% of 1858 decks 1 decks
Reaper King
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Azlask, the Swelling Scourge
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Esika, God of the Tree
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Niv-Mizzet Reborn
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Sliver Queen
0.07% of 1462 decks 1 decks
High Synergy Cards
Kitchen Finks
77% of 26 decks +77% synergy
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77% of 26 decks +70% synergy
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65% of 26 decks +63% synergy
Glen Elendra Archmage
60% of 20 decks +58% synergy
Phyrexian Altar
62% of 26 decks +58% synergy
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65% of 26 decks +56% synergy
Altar of Dementia
54% of 26 decks +51% synergy
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50% of 26 decks +49% synergy
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46% of 26 decks +46% synergy
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46% of 26 decks +46% synergy
Top Cards
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42% of 26 decks +40% synergy
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38% of 26 decks +38% synergy
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38% of 26 decks +37% synergy
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38% of 26 decks +33% synergy
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38% of 26 decks +27% synergy
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35% of 26 decks +33% synergy
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30% of 20 decks +30% synergy
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27% of 11 decks +24% synergy
Restless Apparition
27% of 26 decks +27% synergy
Juniper Order Ranger
27% of 26 decks +25% synergy
Devoted Druid
27% of 26 decks +24% synergy
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27% of 26 decks -0% synergy
Lingering Tormentor
23% of 26 decks +23% synergy
Scuzzback Marauders
23% of 26 decks +23% synergy
Metallic Mimic
23% of 26 decks +22% synergy
Luminous Broodmoth
23% of 26 decks +21% synergy
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23% of 26 decks +12% synergy
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23% of 22 decks +11% synergy
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20% of 20 decks +13% synergy
Ignoble Hierarch
20% of 25 decks -6% synergy
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19% of 26 decks +19% synergy
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19% of 26 decks +18% synergy
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19% of 26 decks +18% synergy
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19% of 26 decks +17% synergy
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19% of 26 decks +12% synergy
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19% of 26 decks +11% synergy
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15% of 26 decks +15% synergy
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15% of 26 decks +15% synergy
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15% of 26 decks +13% synergy
Mikaeus, the Unhallowed
15% of 26 decks +13% synergy
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15% of 26 decks +12% synergy
Kiki-Jiki, Mirror Breaker
15% of 26 decks +12% synergy
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15% of 26 decks +11% synergy
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15% of 26 decks +3% synergy
Gravelgill Axeshark
15% of 20 decks +15% synergy
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15% of 20 decks +15% synergy
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15% of 20 decks +14% synergy
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15% of 20 decks +14% synergy
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12% of 26 decks +11% synergy
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12% of 26 decks +10% synergy
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12% of 26 decks +10% synergy
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12% of 26 decks +9% synergy
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31% of 26 decks +20% synergy
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31% of 26 decks +17% synergy
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31% of 26 decks +1% synergy
Vampiric Tutor
27% of 26 decks +9% synergy
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25% of 20 decks -18% synergy
Enlightened Tutor
23% of 26 decks +5% synergy
Anguished Unmaking
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First Day of Class
20% of 25 decks +20% synergy
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19% of 26 decks +3% synergy
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