Even with Bai buzzing around the monster and annoying it into an even deeper state of madness and rage, it only took less than 5 minutes to reach Debauchery who have been working hard on their preparation, Yunan stayed besides leader and did not do anything, there were many monsters around them and they might fancy a bite out of the weaker Yunan, even if they did not feel like taking all of Debauchery, they might be tempted with a weak prey that was effortless to capture or kill.
Soon Lucian returned with news, the monster was not completely mad, it was probably a parasite that mistakenly invaded its brain and this blood lust was a side effect because the parasite was not meant for its kind, Lucian also reported the success of Yunan's spells, it was truly having troubles with stopping bleeding and healing itself, around 7% of what should be its natural power, its striking speed and damage was 10% lower and its reaction speed was reduced up to 20%, magic was 4% more effective and sharp magic was 9% more effective (sharp magic is the spells that can forme blades like wind, space etc).
Yunan was happy that his debuffs were actually working, the only problem was that mind spells were not as effective thanks to the side effects of the parasite, it had forced the brain of the monster into overdrive at all times, other than destroying its rationale and boosting its aggression, it also made it harder to fall under mind spells and sensory illusion, according to Lucian, this parasite is killing the monster by frying its brain through overwork.
Parasites are the deadliest type of organisms out there, they evolve to rely on a certain species and become perfect for a life of symbiosis with said species, but what would happen if it got into any other species? It becomes a deadly relationship with both host and parasite killing each other. When talking about evolution, parasites are masters of selective evolution, they focus on one specific niche and there is little to no competition between different parasites, they can be named as the masters of exclusivity, because when parasites enter a suitable host they form a symbiotic relationship, if they enter the wrong host both of them die while killing each other.
With the monster arriving in range Lucian went to assist Bai in dealing as much damage as they could to the monster, Balin and Dustan faced it with tower shields and hammers in hand, Fae started bombarding it with magic while leader took her crossbow and started shooting the monster, Anne began casting buffers and shields on Debauchery to protect them, meanwhile Yunan started using bullets filled with his signature venom, the bullets were small and made of ice that can be broken on contact, he aimed for the giant eyes and nose as well as any open wounds he could shoot at, he was then hit with an idea that can improve his venom, so he let automated battle mode take over and started thinking about creating his next weapon.
In automated battle mode many tentacles shot out of Yunan's body and turned into hands, each pair of hands was equipped with a powerful bow, and started making arrows no thicker than threads and shoot them at the open wounds. The bullets containing the venom were now filled with an assortment of different toxins and putrid materials, the earth beneath the monster would change and move, turning to bogs, or quicksand, sometimes it becomes molten lava and when the beast sank in it froze trapping its limbs inside. There were some feelers that attached to the monster and helped syphon the mana from it, battle mode Yunan was carefully moving with Leader while using as much of the stolen mana to cast spells.
it took only 20 minutes for the monster to start exhibiting the tell tale signs of extreme poisoning, it started to spasm, have a hard time breathing, losing sight, and so on, being pumped full of toxins and a wide range at that, was very bad, and with amounts of mana at hand the volume of toxins shot into the monster were as much as a tenth of its body mass, no matter how good it was at breaking down toxic materials, it could never keep up with such a large amount, such high delivery speed or the sheer variety of toxin invading directly into the bloodstream.
With the monster slowing down, losing copious amounts of blood, the accumulated damage over taking the natural healing speed, Debauchery took the chance to go all out and try to kill it as soon as possible, they went as far as having Balin and Dustan wrestle the huge monster to the ground where it was confined by Yunan's earth shift leaving its vulnerable weak spots plain to see and hit. At this point Yunan had finally formulated his newest attack, instead of toxins he could try to use his telekinetic prowess to send in grain sized eggs that contain bits of his own feelers, these feelers would feed on the mana in the monster and grow in size rapidly, consequently bursting the vital organs and harming them beyond repair, the idea was fine, but to program his feelers to feed on mana, multiply, reach certain organs, grown wildly and deal damage, reach the vital organs and the critical number of eggs and then bursting would take long, however it was worth considering if it was a possibility to take out monsters beyond one's power level.
Witnessing the downed monster in its last legs, Yunan stopped attacking and only provided support, before long the monster was dead and motionless, Leader gave the order to burn its corpse instead of leaving it behind, if the parasite inside it had mutated and successfully left behind eggs during the fight things can get very dangerous in this place, therefore fire was the best possible way to deal with the problem. Yunan was sad to see his first kill burning in his own hell flames, he watched as the flames turned flesh and blood and bone into ash, Yunan was told to burn even the blood patches left behind from the fight, contamination from a different eco system was not to be tolerated, especially in a planet where cross-contamination could happen naturally.