Skeleton Ship
Intruder Alarm
Geralf's Messenger
Altar of Dementia

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
Skeleton Ship does not have summoning sickness. Geralf's Messenger does not have any +1/+1 counters.

   Steps

How does this combo work?
1
Activate Altar of Dementia by sacrificing Geralf's Messenger.
2
Geralf's Messenger dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
3
Geralf's Messenger enters the battlefield, triggering itself and Intruder Alarm.
4
Resolve the Geralf's Messenger trigger, causing an opponent to lose 2 life.
5
Resolve the Intruder Alarm trigger, untapping all creatures.
6
Resolve the Altar of Dementia ability from step 1, causing target player to mill cards equal to Geralf's Messenger's power.
7
Activate Skeleton Ship by tapping it, putting a -1/-1 counter on Geralf's Messenger.
8
Repeat.

   Results

What do I get from this combo?
Infinite death triggers
Infinite ETB
Infinite lifeloss
Infinite LTB
Infinite mana creatures you control can produce
Infinite mill
Infinite sacrifice triggers
Infinite self-mill
Infinite untap of all creatures
Skeleton Ship
0.5%inclusion5 decks1.02K decks
The Scarab God
0.0%inclusion1 decks12.5K decks
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Mana Artifacts
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Lands
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14%synergy
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19%synergy
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13%synergy
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10%synergy
Choked Estuary
50%inclusion3 decks6 decks
2%synergy
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33%inclusion2 decks6 decks
26%synergy
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33%inclusion2 decks6 decks
25%synergy
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33%inclusion2 decks6 decks
25%synergy
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33%inclusion2 decks6 decks
24%synergy
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33%inclusion2 decks6 decks
24%synergy
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33%inclusion2 decks6 decks
20%synergy
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33%inclusion2 decks6 decks
17%synergy
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33%inclusion2 decks6 decks
14%synergy
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33%inclusion2 decks6 decks
10%synergy
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33%inclusion2 decks6 decks
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33%inclusion2 decks6 decks
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17%inclusion1 decks6 decks
11%synergy
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17%inclusion1 decks6 decks
11%synergy
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17%inclusion1 decks6 decks
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17%inclusion1 decks6 decks
10%synergy
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17%inclusion1 decks6 decks
9%synergy
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8%synergy
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17%inclusion1 decks6 decks
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17%inclusion1 decks6 decks
-27%synergy