The first thing that he did was send a wave of mana into the cave, setting it on fire as it went. The wave got wider and hotter as it went and exploded in the cave as it hit the walls. He wasn't worried about a collapse as his attack wasn't nearly as powerful enough to do substantial damage to the rocks.
He quickly turned around and jumped off of the cliff, dodging the spears, arrows and rocks that were thrown his way and in both of his hands balls of intense flame formed.
Before he hit the ground he sent the ever growing fireballs downwards, with the impact killing any hobgoblin or goblin that was too close and sent the others flying. Not for nothing was his stats and mana much higher, a single hobgoblin almost killed him before but after a relatively short period of time he was killing tens of them in one go.
Still, regardless of how many he dealt with in that attack it was a drop in the bucket. By the time he hit the ground a wave of goblins rushed to him, seemingly fearless unlike the ones that he left in the cavern.
Their attacks didn't injure him, but it would add up over time. He also didn't want to be ambushed by a particularly strong hobgoblin, the hole in his chest was still there and he wasn't going to underestimate them.
He jumped above the crowd, and using the head of a goblin, he dashed over to the closest hobgoblin. This one had a bone long sword, but it couldn't put up much of a fight against Ray.
With a weapon now in hand, his rate of killing was going to skyrocket. While not a master in any weapon, apart from his fist, after a month of brutal training by many veterans he was going to pick up something.
He didn't like to rely on weapons, but if he had one he was going to use it. They were called force multipliers for a reason.
Covering the bone blade in fire, waves of flame shot out of his sword with every swing, turning the bodies of any slayed goblin to ash. The range of these slashes was much wider than that of the two fireballs he threw so he was killing more with less mana.
Fire generated from a burning object and fire generated from mana were similar, but at the same time very different.
While they are both hot and consume whatever they are burning, a natural fire uses oxygen to burn but a mana based fire uses mana. A normal fire can burn as long as there is fuel and oxygen, but a mana fire stops burning immediately if it runs out of mana.
In exchange, water was not enough to put out a mana fire, meaning that unless the target could control mana to extinguish it it would keep burning.
Unless the goblins had a sense of mana, like the hobgoblins did, then they had no protection against the flames that were burning them to death.
Even if the hobgoblins could put out the fire, that didn't mean that they were safe, the thin dense wave of mana still existed. Their bodies were cut in two anywhere the wave passed and they were dropping like flies.
Had it been before he practiced the Golden Body Refining Technique then not to mention the flaming slashes, a single one of the growing fire balls would have drained him completely. After his body getting stronger and sitting in a pool of pure mana for old world weeks, his mana capacity naturally increased as well.
If it was like a cup before, then now it was like a small pool. His veins were not anywhere close to glowing, even with the rate that he was using it.
A few of the hobgoblins managed to put up some sort of a fight, some of them even injuring him, but they didn't last long under his flaming sword.
After a few hundred swings, he killed about half of them, but one wouldn't be able to tell just by looking. Besides the few hundred bodies of the hobgoblins that could protect themselves from the fire, there was nothing else there but ash that was quickly being blown away by the winds. Not even bones were left, the unprotected bodies of the goblins was nothing but food for the flames.
Burning alive certainly wasn't a good way to go out, but he couldn't care less for his enemies. Plus, at no point was he aggressive with them. Every time he killed one of them it was them who attacked with the intention to kill first.
He wasn't going to just let them kill him, and after the first 3 times that it happened he couldn't care less about how they died. Even if he tried to respect the bodies of the dead, he could only go so far and handle so much.
The sword was on the verge of breaking as not only was it cutting through hundreds if not thousands of bodies, bones and all, but it was also on fire.
It simply wasn't made to be used like that and it was shocking that it lasted that long.
He picked up a spear from the ground and charged the sword up with intense amounts of mana.
He aimed at the densest part of the mob and threw the flaming sword at them, exploding into bone splinters and fire on impact.
With the spear in hand, his rate of killing went up even further. While training he was taught how to use a sword and spear second only to his fist and he was very much in the flow of battle at this point.
He wasn't even thinking and moved purely based on instinct. Attack, dodge, defend, all of it was practically on autopilot as not only was his practical experience fighting such massive groups of enemies growing, but he was blowing through the stages of the purple cycle.
He didn't have the time to either look inside of him or look at his stats, but if he did he would notice that he was on the verge of completing the muscle stage and his stats were growing as he went along.
Even without absorbing the massive amounts of soul power that was simply waiting for him, his stats grew to 272.7. A roughly twenty point increase while in battle. That along with the fact that his body was constantly absorbing mana, he was getting stronger and stronger as he was going.
Naturally this didn't come for free, his body was riddled with injuries and while they didn't hurt as much because of regeneration, the sheer amount was making it more and more difficult to think. It was clouding his mind and he was making more and more mistakes, leading to more and more injuries.
Thankfully for him, and unfortunately for his enemies, the more he got injured the more his stats grew and the more his stats grew the faster his injuries would heal. So his best course of action was to continue fighting, not to retreat and recuperate, not like was considering that anyway.
After another few hundred swings and thrusts of the spear, he was starting to get extremely exhausted, and while his mana wasn't low he was suffering mental fatigue due to his intense use of magic.
The numbers at this point were no more than 100, so after one more swing which destroyed the spear all of his enemies were dead.
Panting, he looked around at the aftermath of the battle, the bodies of his enemies were either blowing away in the wind or cutting to multiple pieces.
He wasn't interested in these incomplete bodies, so with a wave of a hand another wave of fire consumed their bodies joining the others as they danced in the wind.
Due to the close proximity of death of hundreds of thousands, the soul power they dropped clumped up into massive balls that spread across the battlefield. And after collecting all of them he teleported back to his soul sea.