Umbral Collar Zealot
Wingrattle Scarecrow
Thran Vigil

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield (Wingrattle Scarecrow without a -1/-1 counter on it on the battlefield).

   Steps

How does this combo work?
1
Activate Umbral Collar Zealot by sacrificing Wingrattle Scarecrow.
2
When Wingrattle Scarecrow dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3
Thran Vigil triggers, putting a +1/+1 counter on Wingrattle Scarecrow.
4
Resolve the Umbral Collar Zealot ability.
5
Repeat.

   Results

What do I get from this combo?
Infinite ETB
Infinite LTB
Infinite death triggers
Infinite sacrifice triggers
Infinite surveil
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