Muscle Speak (マッスルスピーク Massuru Supīku) is a Caster Magic which utilizes the body's muscles.
A type of supporting Magic. By chanting some incantations, the user can increase the muscle mass of their surrounding allies. However, to maximize the efficiency of this Magic's effects, the caster's body must also be well-toned. Thus, the user usually needs to exercise consistently on a daily basis.
- Fairy Tail Manga: Volume 21 Bonus, Guild Cards