Father of Monsters

The fruits of labor from our dear friend in his Dungeons and Dragons campaign that I a several friends played in.
Allow me to elaborate. Five heralds of the God of Slaughter; Erythnul went on a 5-man war path throughout the region to kill and gather enough souls to feed a beast so old and powerful that the other Gods buried it away. Erythnul created the critter at the beginning of the Material Plane's timeline. Throughout the campaign (half-way) out characters tried to stop the 5 and their dastardly plans which we weren't fully aware of at the time. Result: We failed, they unleashed the beast and it began to destroy the region completely unopposed (all Gods and other planes cut off their way to the material plane so it didn't get out). Wyverns, Rocs, Buffalo, wolves, Ogres, Will-o-wisps, and any and every other thing fled from it. But luckily we did have a partial solution to the plan, to distract the Father from deastroying the plane we convinced a feelz-compromised demon to constantly fight it for near-eternity. When it killed him he would respawn from a magical axe that we managed to place on it's back which it knew nothing about. (Demon is on it's back) Not only that, my dwarf managed to get enough caltrops on in it's feet so now it's land speed is 10 ft. until someone does a heal check on it (it cannot). Sadly, all but one player character died in the final event's verse this beast. As the DM told us after showing it's character sheet; "It's a mix between the Tarrasque , a black dragon, and a red dragon."
Note: I do not own D&D, or it's creations, the Father and other characters in quest are owned by