Poison Mushroom Cookie is one of the antiheroes in the Cookie Run: Kingdom game and an epic-type cookie available since the launch of the game. Poison Mushroom Cookie serves as one of the Dark Enchantress Cookie's servings. Poison Mushroom Cookies act childish and playful, even when they are defeated they treat everyone as friends, and Licorice Cookie as a best friend always tagging along with him like they are related. poison Mushroom Cookie likes to share its mushrooms with all other cookies not understanding that they may cause harmful effects on other cookies. A fanart Cookie Run progress bar for YouTube with Poison Mushroom Cookie.