The big problem is that mythic reset is really a crutch because Wizards wasn't willing to bite the bullet and just go beyond their existing CR schemes. If you just do aspect of tiamat in the straightforward way, with 1075 hp, it winds up at around CR 40.
The big problem is that mythic reset is really a crutch because Wizards wasn't willing to bite the bullet and just go beyond their existing CR schemes. If you just do aspect of tiamat in the straightforward way, with 1075 hp, it winds up at around CR 40.