Unlike the later feat, Animal Skins, which says you gain "the effects of animal form", the Wild Astrazoan Heritage says "you can use Change Shape to transform into an animal with the statistics of a 1st-level pest form." What exactly does this mean? Are you even Tiny, or just Small/Medium/Large (same as Change Shape) but with the 'statistics' of a pest form? What even are the 'statistics' of pest form? Everything listed after "You gain the following statistics and abilities:" or just some of them (which is a 'statistic' and which is an 'ability'?) Does this use of Change Shape count as a battle form?
Basically, I'm trying to understand exactly what a Wild Astrazoan can do in regard

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