There are no dragons in oblivion.
If your a high enough level (somewhere around 20) you can get them from either the dark brotherhood or off of a creature in oblivion.
No. During the trial you are limited to level 20, which is not high enough to have a dragon/drake mount.
you have to level them high enough and eventuly you get it
All you have to do is level up, (to about level 30 or higher) then go out in to the forests and the bandits might where glass armor, or even deadric once you are a high enough level.
Once you get high enough level, like 15 or something, bandits will start carrying glass daggers, glass warhammers, you name it. It is based on level, not location.
When your level gets high enough, they are everywhere. But even at low levels, you can find them at Hircine's grove, North of Bravil. And they will probably kill you.
you level up and then upgrade your magic skills
To get a hydra you have to be a high enough level and in the balance school of magic.. Remember: A hydra is a three headed dragon!
to make lots of cash you can just simply kill green dragon for their bones if you are a high enough level. =)
I'm guessing a relatively high level... probably between level 25-30
I think it stops around 200, my character is 198 and it is getting nearly impossible to level. But I am not certain.
You have to be a very high level with a dragon amulet because if you are lower than level twenty it will knock you out in one hit.