We're going to have to revise all materials referencing Glimpse of Truth to claim it's just a more powerful Invisibility Purge that also finds magically hidden things. So he's not trying to stack it with Abadar's Truthtelling. ....maybe it's mostly meant for seeing enemies lurking on other planes, but he doesn't need it now that we've got a Forbiddance up. Call it, uh,

"Greater Invisibility Purge."

We're going to have to revise all materials referencing Glimpse of Truth to claim it's just a more powerful Invisibility Purge that also finds magically hidden things. So he's not trying to stack it with Abadar's Truthtelling. ....maybe it's mostly meant for seeing enemies lurking on other planes, but he doesn't need it now that we've got a Forbiddance up. Call it, uh,

"Glimpse of Beyond."