Ulasht, the Hate Seed
Cathars' Crusade
Phyrexian Altar

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
Ulasht has at least two +1/+1 counters on it.
1 available

   Steps

How does this combo work?
1
Activate Ulasht by paying 1 and removing a +1/+1 counter from it, creating a 1/1 Saproling creature token.
2
The Saproling enters the battlefield, triggering Cathars' Crusade, putting a +1/+1 counter on each creature you control.
3
Activate Phyrexian Altar by sacrificing the Saproling, adding 1.
4
Repeat.

   Results

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