Mairsil, the Pretender
Endling
Cauldron of Souls
Blood Vassal
Thousand-Year Elixir

   Prerequisites

What do I need to start this combo?
Mairsil and Thousand-Year Elixir on the battlefield.
All other permanents in exile.

   Steps

How does this combo work?
1
Activate Mairsil using Cauldron of Souls' ability by tapping it, giving itself persist until end of turn.
2
Activate Mairsil using Blood Vassal's ability by sacrificing it, adding .
3
When Mairsil dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
4
Activate Mairsil using Endling's third ability by paying , giving Mairsil undying until end of turn.
5
Activate Mairsil using Blood Vassal's ability by sacrificing it, adding .
6
When Mairsil dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
7
Repeat.

   Results

What do I get from this combo?
Infinite black mana
Infinite death triggers
Infinite ETB
Infinite LTB
Infinite sacrifice triggers
Mairsil, the Pretender
0.9%inclusion16 decks1.82K decks
High Synergy Cards
Torchling
100%inclusion16 decks16 decks
100%synergy
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94%inclusion15 decks16 decks
93%synergy
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94%inclusion15 decks16 decks
93%synergy
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94%inclusion15 decks16 decks
93%synergy
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88%inclusion14 decks16 decks
86%synergy
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86%synergy
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81%inclusion13 decks16 decks
81%synergy
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81%inclusion13 decks16 decks
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75%inclusion12 decks16 decks
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69%inclusion11 decks16 decks
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63%inclusion10 decks16 decks
62%synergy
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56%inclusion9 decks16 decks
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25%inclusion4 decks16 decks
23%synergy
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15%synergy
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56%inclusion9 decks16 decks
56%synergy
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50%inclusion8 decks16 decks
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44%inclusion7 decks16 decks
44%synergy
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44%synergy
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41%synergy
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37%synergy
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Blood Pet
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Instants
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Lands
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18%synergy
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11%synergy
Dragonskull Summit
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Crumbling Necropolis
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Training Center
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Smoldering Marsh
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Fabled Passage
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24%synergy
Thundering Falls
31%inclusion5 decks16 decks
21%synergy
Terramorphic Expanse
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Haunted Ridge
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10%synergy
Stormcarved Coast
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6%synergy
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6%synergy
Underground River
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4%synergy
Scalding Tarn
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Raucous Theater
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Path of Ancestry
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Polluted Delta
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Bloodstained Mire
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15%synergy
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15%synergy
Temple of Deceit
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5%synergy
Temple of Epiphany
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4%synergy
Evolving Wilds
19%inclusion3 decks16 decks
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