Cavalier of Night
Mirror Image
Altar of Dementia

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield (Mirror Image as a copy of Cavalier of Night on the battlefield).

   Steps

How does this combo work?
1
Activate Altar of Dementia by sacrificing Mirror Image.
2
When Mirror Image dies, its last ability from Cavalier of Night triggers, returning itself from your graveyard to the battlefield as a copy of Cavalier of Night.
3
When Mirror Image enters the battlefield, its first triggered ability from Cavalier of Night triggers; choose not to sacrifice a creature.
4
Resolve the Altar of Dementia ability from step 1.
5
Repeat.

   Results

What do I get from this combo?
Infinite death triggers
Infinite ETB
Infinite LTB
Infinite mill
Infinite sacrifice triggers
Infinite self-mill
Sefris of the Hidden Ways
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Muldrotha, the Gravetide
0.0%inclusion5 decks21.4K decks
Araumi of the Dead Tide
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Sidar Jabari of Zhalfir
0.0%inclusion2 decks16.6K decks
Mirko, Obsessive Theorist
0.0%inclusion1 decks9.67K decks
Marchesa, the Black Rose
0.0%inclusion1 decks11.9K decks
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Battles
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Planeswalkers
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Utility Lands
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12%synergy
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11%synergy
Cephalid Coliseum
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10%synergy
Castle Locthwain
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10%synergy
Mana Artifacts
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12%synergy
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86%inclusion19 decks22 decks
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Mind Stone
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11%synergy
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Fellwar Stone
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Lotus Petal
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Lands
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93%synergy
Wastewood Verge
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Breeding Pool
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Command Tower
91%inclusion20 decks22 decks
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Hedge Maze
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Underground Mortuary
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67%synergy
Deathcap Glade
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67%synergy
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59%synergy
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52%synergy
Overgrown Tomb
80%inclusion4 decks5 decks
40%synergy
Exotic Orchard
55%inclusion12 decks22 decks
18%synergy
Port Town
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35%synergy
Arcane Sanctum
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22%synergy
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11%synergy
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20%synergy
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13%synergy
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Adarkar Wastes
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Undercity Sewers
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12%synergy
Underground River
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5%synergy
Misty Rainforest
23%inclusion5 decks22 decks
11%synergy
Dimir Aqueduct
23%inclusion5 decks22 decks
8%synergy
Darkwater Catacombs
23%inclusion5 decks22 decks
8%synergy
Reflecting Pool
18%inclusion4 decks22 decks
13%synergy
Tainted Isle
18%inclusion4 decks22 decks
7%synergy
Terramorphic Expanse
18%inclusion4 decks22 decks
3%synergy
Morphic Pool
18%inclusion4 decks22 decks
-7%synergy
Ash Barrens
14%inclusion3 decks22 decks
9%synergy
Clearwater Pathway
14%inclusion3 decks22 decks
6%synergy
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14%inclusion3 decks22 decks
2%synergy
Myriad Landscape
14%inclusion3 decks22 decks
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Path of Ancestry
14%inclusion3 decks22 decks
-8%synergy
Drowned Catacomb
14%inclusion3 decks22 decks
-15%synergy