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I was thinking about this: the animation can be divided into two phases:
1. When the yeti stands leaning on its fist.
2. When the yeti raises its paw and scratches the ground.
This is a bit unsettling – in the original, the horned demon constantly keeps its hand raised and scratches the ground, and the hellish steed also constantly keeps its hoof raised and taps it briefly on the ground.
That is, the animation, I would say, has a transition from a standing position to an action – this is more suitable for stir00 (the animation that plays when hovering the cursor over a unit).
I would make the yeti sway from side to side like a cyclops.