Billy used that chance to fly above Meryl and the others while the dragon was recovering from the impact, and he threw the arrow at them. When the beast recovered, it only saw Billy flying toward itself with his glaive in hand. He used Sonic Spear several times in a row, but the monster blocked them all with its claws. Despite that, Billy didn't give up and then used his buffs and swung his weapon. The beast blocked the strike with both claws, but it still was pushed back due to Billy's sheer power… the monster showed surprise in its vicious eyes for a moment.
"I have to keep its eyes on me until the others fire the arrow…" Billy thought. "This thing has some crazy healing skills, so it wouldn't surprise me if it also has some powerful defensive spells."
The guardian recovered and flew back to Billy. Still, when it was a few hundred meters away from him, it began to slow down since he began to spam Niffelheim nonstop. While the beast had some Resistance to ice attacks, it didn't have resistance against debuffs, so its speed began to slow down. Billy used that chance to attack again, but at the last minute, the dragon used its healing spell, and then the debuff disappeared.
"That spell can even cancel the debuffs?" Billy thought while he saw the big mouth of the monster approaching him.
Billy tried to escape, but slowing down and moving away at the same time wasn't possible. Not even changing directions was. So, he just used Enhanced Body and Destructive Aura when the monster tried to bite him. In the end, Billy managed to stop the jaws from smashing him to bits. Still, his body and his glaive were having to deal with one heck of pressure since his legs were keeping the lower jaw from moving, and his arms alongside the glaive were doing the same thing with the upper jaw.
"You shouldn't try to eat the food from unknown sources!" Billy said and then pointed his mouth toward the interior of the beast's mouth before using Mana Cannon.
Billy's attack caused a small explosion, but it had been powerful enough to make it tremble and damage the interior of the monster. Some parts of the mouth were even bleeding, considering the small amount of mana he used. It wasn't much surprising, but it seemed the interior was a lot softer than the exterior.
In the end, as annoying as he was, Billy decided to do the most obvious thing, he used Mana Cannon nonstop inside the mouth of the monster. Little by little, he felt the grip of the monster's jaw increase, so he felt relieved and motivated to keep doing that. Until the monster also used Mana Cannon on him.
Billy considered the chance of using Reflect now and making the monster suffer a lot of damage. Still, his mana would reach dangerous levels, and he wasn't sure if Meryl and the others would pull that strategy off. So, he just activated Mana Shield while he tried to escape from the mouth.
In the end, Billy escaped from being devoured, but he still was hit by the Mana Cannon, at least a part of it. He used the weakest version of the effect of Light Speed Sword and then doubled his speed and escaped from the attack before he could lose even more mana.
Billy looked at Meryl and saw the others touching the arrow that he had made like they were putting their feelings on it instead of the mana. That made him frown since there were many other things that they could do in that situation to improve their chances, and making that look weird wasn't one of them.
Regardless, it seemed that Billy would have to forget about them because he had his own problems… the situation changed. The wounded dragon that had some blood leaving its mouth suddenly began to fly a lot faster. The only downside was the fact that it couldn't turn. The beast flew toward Billy at supersonic speeds, and when Billy dodged the attack, the monster hit the wall on the other side of the room and made the entire room tremble violently. Still, the dragon only hit it with its paws, so it quickly turned around to try again.
"If I get by that… this is troublesome. While its accuracy is low, I don't have many openings to attack," Billy thought.
The monster suddenly charged again, and Billy flew to the side with all his might, but the burst of wind alone made him spin in the air several times. He could sweat that the monsters got faster, but he was willing to confirm that on the next attempt… Billy had one idea since that kind of attack probably was taking quite the toll on the monsters. When the beast was about to attack again, Billy charged forward it and then used Gungnir. Since the motion was similar to Light Spear, the monster made a mistake and thought that it would be the same skill… However, the next attack pierced its left frontal paw and almost destroyed its left eye as well.
"Shit… fucking awesome instincts," Billy thought.
The dragon grunted in pain, but it didn't let the wounds bother for long. It quickly used its healing spell again, and then it returned to normal. Billy could use that attack two more times before needing a break to recover his stamina, but neither of those will be as effective as the first one…
"In any case… Maybe I should have those if things get complicated later," Billy thought while he took a peek at the others, and he realized that something changed with them.
It seemed that they were almost ready, but the dragon, with its fearsome instincts, realized that something was off. They had been way too quiet for a while, after all. Nevertheless, Billy had to play the role of the bait…