Surrender or Fight?

The heart of the beat was made of pure flames and defended by hundreds of lava creatures inside the lava, swimming or just walking as if it was land. 

Goliath raised one claymore and came light from it. An intense and bright light becomes more intense with the monsters approaching him, and then suddenly that light reached the sky and turned into heavy mater, nullifying all the lava and monsters near him in just like a second. 

It was so intense, and at the same time, that same light started to turn into shadows but not wholly. It was a mix of shadows and light coming out from the blade while he walked.

The brainless monsters kept coming at him and dying when entering the light. 

The Volcano trembled in fear and despair while Goliath approached without not much effort. But he would not die that easy. The Volcano used a spell that just the ones of rank S were capable of.