Fire

As an extremely huge amount of mana was injected into the spell through the crystal magical medium in William's hand, the entire staff instantly turned fiery red, and spiderweb-like cracks began to appear on its surface.

Boiling magma began to emit from the lines that outlined the complicated nexus. The surrounding air also became scorching hot, and the surging heat wave seemed to bake the clouds in the sky.

There were a total of 13 so-called peak spells.

They represented the peak of every magic skill tree. The principles behind the operation of every peak spell were referenced from the creation of the world, so they were spells that stemmed from the origin of the Currere rules the most.