Herbs and Their Witchy Names One of the things you might notice when working with spells is they call for some different ingredients. For example, eye of newt, wool of bat, toe of frog. To some who happen across these spells it can help lend to some of the fear surrounding witches. However, none of these ingredients are literal. For example, if you see eye of newt in a spell, you are not going go out and get an actual eye from a newt. It actually refers to mustard seed.