Eirdu, Carrier of Dawn
Umbral Collar Zealot
Spiteful Squad

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield (Eirdu as Isilu, Carrier of Twilight on the battlefield and Spiteful Squad without a -1/-1 counter on it on the battlefield).

   Steps

How does this combo work?
1
Activate Umbral Collar Zealot by sacrificing Spiteful Squad.
2
When Spiteful Squad dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to its replacement effect.
3
Resolve the Umbral Collar Zealot ability.
4
Repeat.

   Results

What do I get from this combo?
Infinite +1/+1 counters on creatures you control
Infinite ETB
Infinite LTB
Infinite death triggers
Infinite recursion of creatures you control
Infinite sacrifice triggers
Infinite surveil
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