finish all the deidric shrine missions
You never become an actual god in Oblivion.
no
you cannot but you can become a blade
No, you are not a dragon in Oblivion, nor can you become one. You might be thinking of Divinity 2: Ego Draconis.
you cant in oblivion without a mod
no
you need to download a mod in order to do that. you can only download mods for Oblivion if it is on your PC
yes but you have to buy a spell from a spell trader
When your conjuration skill reaches level 50.
Go to the arena in Imperial City, and defeat all challengers.
Search for a Mod called Kvatch Rebuild or Kvatch Aftermatch.
I blew them to oblivion with an atomic bomb; they were blown to oblivion; the Universe was sucked to oblivion; its like they appeared out of oblivion