Calidus Brachium Purgatory

Mana Zone Full Release: Fire Magic: Calidus Brachium Purgatory (マナゾーン全開 炎魔法『』煉獄) is a Fire Magic spell.

Description
After taking control of the surrounding mana, the user pours all of their strength into a stream of punches that engulfs the entire area with blue flames. The fire is strong enough to incinerate blocks of stone.

The physical strain of this spell could worsen any injuries the user has, and the magical exhaustion could leave the user defenseless.