beyond what others have said, you mentioned that Tasha is recruiting the PCs to eventually defeat Grazzt.
That seems.....a very very lofty order for just some old group of adventurers. What about these PCs makes Tasha think they have a "chance in hell" of defeating a demon lord? Is it they have some special sauce, they have some protection against demons (that the PCs might not even know they have). Does faerun possess some big anti-demon juice that the PCs could cultivate?
So something to think about.
That seems.....a very very lofty order for just some old group of adventurers. What about these PCs makes Tasha think they have a "chance in hell" of defeating a demon lord? Is it they have some special sauce, they have some protection against demons (that the PCs might not even know they have). Does faerun possess some big anti-demon juice that the PCs could cultivate?
So something to think about.