With Yunan's help, it took less than a year for the avatars and the council to decimate each other, leaving behind only the main gods, their numbers only maintained by their immense power, alas, such expenditure was not sustainable, the drain on both sides was massive, coupled with the fact that Yunan stopped all supplies of faith, a year was already too long to reach the stalemate, finally, Yunan decided to show the cards in his hand and end the war once and for all.
He immediately took control of the divine realms and fused them into Dreamscape, effectively imprisoning the two forces and forcing them into a corner, using the most powerful nightmare creatures in Dreamscape to mount a siege.
He visited the avatars first, they were given a two-choice ultimatum given to them, submit or die.
It went as follows: Yunan first stopped the siege warfare just long enough to show himself, a representative of the avatars left the crude fortification made by the gods, as they tried to survive long enough to know what has just happened.
"Submit to me, sign a soul contract with me, and live, refuse and perish, as you can already tell, offending your masters is of little consequence, they won't aid failures like you who failed to even survive a small civil war". Yunan rubbed the salt on the already festering wounds, he didn't try to be diplomatic, what he was offering was their lives for their servitude, the cruellest of all the things Yunan could have offered, but the situation asked for such extreme behaviour.
"The contents of the contract are simple, you will swear loyalty to me, that you will follow all my orders and work to preserve and improve all that is mine, you will live and die for me, in exchange, I will preserve your lives today and make sure you don't go wanting, your status as avatars will be revoked, but if your primordials wish to keep your services, I have no objection, as long as my orders are priority number one, the other choice is death".
Most avatars surrendered, some choose to fight to the death, and die they did, the rest all accepted the contract, strangely, none of the primordials renounced any of their avatars, some even took to using them to ask questions or send messages to Yunan.
The destruction of the council was much more eventful, the army of nightmares held the over-gods down, when Yunan arrived with his army of gods, the stench of despair filled the area. To their credit, the over-gods were no slouches, they fought for their lives with matchless ferocity. For once, there was no need to argue endlessly to reach a consensus, because the only choice they had left is dying with a fight or dying without a fight, thus, they chose to resist as best as they could.
Even if Yunan thought their final resolve was impressive, he would never allow them to live, there may have been people who were in the same position as Tasha, alas, their luck was not as good as hers, and he didn't want to even think about sorting them out, for they have received his invitation more than ten years ago, Tasha had shared his message, even if she was unwilling to accept it herself at the time, anyone could have taken the liberty to approach his faction in order to join.
Since no one took his invitation, Yunan was not going to pull back his punches, all excuses would become moot when it was time for war.
Yunan went all out for the first time since he ascended, his spells were amplified to the point of absurdity, a small field of flames turned the ground into roiling mess of hell flames, an ice spear froze three gods who were in the vicinity of its trajectory, the actual target turned into a shower of ice particles at impact, Yunan ended up causing more damage in friendly fire than to his targets.
Seeing things going this way, he ordered everyone to step back and went into a melee fight, he had no idea how much damage he could do, and there would never be another chance to fight at full power in the near future.
The dozen over-gods still alive attacked all at once, and Yunan countered with his soul blade, it went through weapons, spells and body parts as if cutting through water, hardly any resistance, councilmen and women were definitely powerful, the attacks that landed dealt considerable damage to Yunan, but those he could retaliate against were either severely injured or outright absorbed through the soul bound blade.
Swipe, cut, stab, poke, flick, parry, stab, swipe, block, dodge, cut, stab, absorb. That was what could be found Yunan's mind, he used all his mental capacity to sort all the data and come up with simple actions, each action was made the exact moment it was needed, at the moment, the overwhelming power of a dozen over-gods gave Yunan no space to add spells into calculation, not until he halved their numbers was he capable of shifting mental capacity to other things, for example, things like noticing that he couldn't sustainably continue to fight with the frightening injuries he had taken.
Feeling satisfaction from familiarity with his limits, Yunan pulled back and left his army to deal with the leftover over-gods, he did not leave the battlefield, instead he worked as support to buff his army and heal them, he let his natural healing take care of his injuries, once he was fully healed, he would dive again into battle, either using spells or weapons, this fight lasted for three days, with only the council head and his second in command left standing, the fighting gradually came to a lull, the damage sustained by both parties was terrible, a price too heavy by any recount.
Feeling like there was no way out from this accursed universe, the two looked at each other and detonated their divinities.
The explosion was enough to cover an entire tenth of Dreamscape, wiping out many of its residents, including a number of gods who were unable to resist the blast wave, even under the protection of many forcefields, some gods could not resist and they too exploded, when the whole ordeal was done, only a third of the gods that resided in universe Hosana was still alive.