Mikaeus, the Unhallowed
Soulstinger
Altar of Dementia

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
Soulstinger does not have a +1/+1 counter on it.

   Steps

How does this combo work?
1
Activate Altar of Dementia by sacrificing Soulstinger.
2
When Soulstinger dies, its second and undying abilities trigger.
3
Resolve the first trigger, allowing you to put a number of -1/-1 counters on a creature equal to the number that were on Soulstinger.
4
Resolve the undying trigger, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
5
When Soulstinger enters the battlefield, its first ability triggers, putting two -1/-1 counters on it.
6
Resolve the Altar of Dementia ability, causing target player to mill cards equal to Soulstinger's power.
7
Repeat.

   Results

What do I get from this combo?
Infinite -1/-1 counters
Infinite death triggers
Infinite ETB
Infinite LTB
Infinite mill
Infinite sacrifice triggers
Infinite self-mill
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