Eater Magic

Eater Magic (Souruiitaa Maho, ソウルイーターマジック) is a caster magic which allows the caster to eat absolutely anything and convert it into eternano, which the caster then absorbs inorder to refill his/her's magic.

Description
When a person knows this magic, they will become able to eat anything; rock, paper, sand, clouds and etc, as if it was bread or something similar. Upon eating the object, that object will turn into eternano and be absorbed by the caster inorder to refill his/her magic. However, the magic that the caster will gain is far less when compared to the amount of eternano a Dragon Slayer will get when eating their element