Arwen Undómiel
Herd Baloth
Woe Strider

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
You control at least one additional creature.

   Steps

How does this combo work?
1
Activate Woe Strider by sacrificing another creature, causing you to scry 1.
2
Arwen Undómiel triggers, putting a +1/+1 counter on Herd Baloth.
3
Herd Baloth triggers, creating a 4/4 Beast creature token.
4
Repeat.

   Results

What do I get from this combo?
Infinite death triggers
Infinite ETB
Infinite LTB
Infinite sacrifice triggers
Infinite scry 1
Infinite +1/+1 counters on a creature