* Each creature type has its own skill associated with it
* Butcher's kit needed to harvest creature parts (If you have prof in butcher's tools, you gain your proficiency as a bonus when making a harvesting roll no matter which skill used. If you already have proficiency, you do not gain expertise)
* DC set by creatures CR
* Creature parts are generally worth more, and apply to more specific ingredients for single ingredient crafting
* Can only be done on a recently deceased creature