Moradin put astral essence to the forge, preparing it for the focus of the god's plans. They would bind Tharizdun into a physical body, and in theory his power would be reduced. He would no longer be able to change shape at will, it would be as if he were stuck in a mortal aspect permanently. Moradin had already crafted the golem to house the spirit of Tharizdun; the last piece required was also the most complex, a soulstone. This soulstone must be of adequate capacity to house the essence Tharizdun now possessed. Prior to his death, this would have been easy. His power was measurable, but in his current state the potential seemed boundless.
The mortal realm was feeling the effects of Tharizdun's presence in the astral plane. Conflicts across the realm have broken out, and reason and logic have given way to fear and xenophobia. Spirits are now doomed to restlessness as the connection to the Shadowfell has become strained and in threat of being severed. They Feywild is beginning to overlap into mortal realm causing animals to seemingly go insane and fey creatures were now able to cross over, fueling more xenophobia. If things weren't resolved quickly the world would be engulfed in fire.
Sweat traveled down Moradin's face as he marveled at the small gem his hammer blows had created. It was shiny, and roughly the size of an apple. He gripped it in his hand and grinned. The gem was the most difficult thing he ever created, but it was also the most valuable. He believed this gem would be the savior of the gods.
The gods gathered in a brief meeting, hashing out the details of their plan to imprison Tharizdun. They would first lure him to the Elemental Chaos, where they cared little what destruction occurred. Binding his essence into the soulstone that Moradin had created was the most crucial and most difficult aspect of this plan. So much hinged on ritual, and several gods would have to channel all of their power. Much trust was being placed in selfish beings who thought only for themselves, but the raving lunatic that was Tharizdun was equally dangerous to them all.
The next phase of the plan was easy; simply place the soulstone in the golem that Moradin created. The final phase was opening a pocket dimension somewhere far away from the other planes and chaining the golem to the new domain of Tharizdun. By placing Tharizdun far away it would reduce the influence he would have on the natural realm. Logic and reason would again be at the forefront.
The time had come; Moradin, Bahamut, The Raven Queen, Asmodeus, and Vecna and Ioun all gathered in Bahamut's domain. They would be the ones to lure Tharizdun to his doom. The other 13 gods were positioned in the Elemental Chaos preparing the pocket dimension and the ritual of binding. The golem stood motionlessly a short distance away, waiting for it's use.
Tharizdun appeared in Bahamut's domain, sensing a large gathering. Apparently he wasn't too focused on the Elemental Chaos. Tharizdun was quiet for a being looking like a bugbear, he was beyond speaking to them now. A fireball aimed directly at the mass of the gods flew, but with a gesture Ioun and Vecna fizzled the spell just as it was about to reach it's impact site. Tharizdun thought of a bolt of lightning, and it was so, though Asmodeus dodged out of the way.
The gods fell back against the relentless striking of Tharizdun. They made their way for the bridge into the elemental chaos and another several miles would be their destination. Tharizdun had a smile upon his face the entire time, seemingly enjoying toying with his friends. He didn't hate them, they simply had to die.
Tharizdun leaped a great distance and slammed his fist into the ground in which the gods had occupied a moment before. A great fissure opened up beneath the gods, and Tharizdun was the first to fall in. Bahamut opened his great golden wings and plummeted down to catch Asmodeus and The Raven Queen who had fallen the furthest into the pit. Moradin, Vecna, and Ioun had all managed to grip the sides of the fissure, preventing their fall. The gods all looked down into the gigantic chasm, looking for a sign of Tharizdun. "I still sense him; he's alive. No surprise there." Ioun shrugged, he could hope it would be that easy.
The gods saw Tharizdun leap once again, this time high into the sky. The chase was still on, and it would be everything they could do to make sure they all made it out of this alive. Tharizdun was no foe to underestimate, and any power conceivable was his so long as he could believe it.
A short distance away from the small group of gods was the bulk of the gods. They finished the pocket dimension, and they were finishing up the preparations for the binding ritual. At the center of a large circle was the focus of the ritual. If they could usher Tharizdun into the center of the circle he would be bound much more quickly than if his location were outside the circle. The gods did much chanting, hand gestures, and many items were used in the process. The soulstone was in the dead center of the ritual, and magic was visibly being drawn into it from the gods.
Tharizdun had finally chased the gods to the site of their ritual. He summoned a great tornado of fire that whipped across Bahamut, scarring his wings and belly. Necrotic lightning struck Melora, Pelor, and Ioun. The gods now struck back at him. The Raven Queen shot forth lances of ice, Pelor channeled forth several fireballs in quick succession, and Torog lashed out with ethereal chains. Tharizdun attempted to avoid it all, but the ethereal chains latched hold and began dragging him into the center.
Bane bashed Tharizdun in the head with his shield, Bahamut breathed a great deal of flame onto the ground around Tharizdun, and Ioun generated a shield barrier around him to trap Tharizdun inside. Vecna, with his evil ways attempted to drain power from Tharizdun to both help the fight and also bolster his own strength. With Tharizdun both stunned and trapped in the center of the ritual circle, the gods began chanting and their voices boomed across the landscape. Tharizdun rocked back and forth as their voices cascaded against him and slowly his very being was being absorbed by the soulstone.
Tharizdun glanced in the direction of the soulstone, and Vecna applied much greater amount of draining pressure to him. Tharizdun was powerless to prevent his absorption, and his voice seemed much deeper than normal; "Noooooo!" With a sudden flash the soulstone rose from it's holder and absorbed the remainder of Tharizdun.
Tiamat was the first to speak; "Quick, Moradin, place the stone in your golem!" Moradin rushed and grabbed the stone. Running to the golem he slid it into place and the golem slowly glowed with magical power. It came to life, but as expected the golem wasn't able to move very quickly at first. "Now, teleport him into the dimension!" shouted Melora who was exhausted.
Vecna focused his magic on the golem, attempting to drain even more power from Tharizdun as he could. The gods chanting was quick, and a hole was ripped into the sky. Moradin, with all his strength lifted his creation and threw it into the portal. They had done it! Tharizdun had been defeated! The gods no longer had to fear assassination.
Vecna dropped to the ground, exhausted from his magic, but he was quickly helped up to his feet by Ioun. The gods exchanged pleasantries for a brief time before returning to their domains. This was the most difficult thing the gods will ever accomplish, and mortals won't ever know of it.