[Muffet explains, idly toying with the line of purple magic to create a complicated little glowing cat's-cradle structure as she does so:]

Green is the magic of shielding and healing, though I'm really only skilled with the latter part. In all, there are seven colors of magic, plus the basic colorless kind that all of my people can do. And I can bind anything I can get my threads around- people and food most certainly included.