i've spent 3 days trying to beat draconis and now i'm stuck in the lair.. i need the empty air flask thing.... thanks

I think it's in the first pool on the left after you enter the enclave.

The empty breath potion flask is dropped by Ekim Cyre (sp?) the werewyvern after you kill it.

The empty flask is dropped by the werewyvern, then you have to go through the pool (the only one you will be able to go through at this point) to the cave with the frost salamanders. Kill them all, then go through the door to a room with a couple of bone fiends. Kill them too, then there is a pool in the room that you can use to fill the empty flask, making the breath flask. Go back to the main chamber again and you will be able to go through one additional pool.