Muscle Speak (マッスルスピーク Massuru Supīku) is a Caster Magic used by Joey Fullbun.
A type of supporting Magic. By chanting some incantations, the user can increase the muscle mass of their surrounding allies. However, to increase the efficiency, the Caster's body must also be well-toned. Thus, the user usually needs to excerise constantly, every day. Even though the caster is already well-built they can also use the magic on themselves.
- Muscle: Plus (マッスルスプラス, Massuru: Purasu): He recites some incantations and either himself or another target becomes engulfed in red energy, this increases their muscle mass temporarily.