One of the most powerful fire based attack spells is the spell lava blast.
This spell gains its tremendous power by tapping the essence of lava, one of
the most powerful forms fire can take. Instead of directing flame, or fire
energy, a stream of red hot, molten lava springs forth onto the target. The
results are terrifying as the target's flesh burns away as the lava envelopes
the target. The changing of fire energy into molten lava takes a fair amount
of effort and concentration, making this a rigorous spell to cast, but it is
also the most powerful composite fire spell that is able to affect a single
target.