Mikaeus, the Unhallowed
The Reaper, King No More
Yahenni, Undying Partisan

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield (The Reaper without a +1/+1 counter on it on the battlefield).

   Steps

How does this combo work?
1
Activate Yahenni by sacrificing The Reaper.
2
When The Reaper dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
3
When The Reaper enters the battlefield, it triggers, putting a -1/-1 counter on it.
4
Resolve the Yahenni ability
5
Repeat.

   Results

What do I get from this combo?
Infinite ETB
Infinite LTB
Infinite death triggers
Infinite sacrifice triggers
Infinite -1/-1 counters
Infinite recursion of non-Human creatures you control
Auntie Ool, Cursewretch
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The Reaper, King No More
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Ramos, Dragon Engine
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