you dont "get a dragon" in oblivion you fight some dragon looking creatures, you can capture a dragon soul, but you cant "get a dragon" sorry bud,
They are collectively called 'Daedra'.
The daedric realm, Oblivion, is a different plane from the one in which the continent of Tamriel is situated. Creatures can travel to and from Oblivion through Oblivion gates, so presumably that's how daedra would travel to Elsweyr. (Note that this can not be done in any unmodded game).
Im not quite sure what your asking, but the guardians of oblivion are the daedra, ( the guys who wield big weapons and run around wearing daedric armour) and most of the creatures in the oblivion gates ie: scamps, clanfear, daedroths, astronachs ect...
Oblivion took place in Cyrodiil. Skyrim takes place in Skyrim. Different countries, different people, different Daedras.
A wide variety of creatures exist in the Oblivion universe. You have your basic animals; wolves, giant rats, bears, etc. An array of mythical creatures; Minotaurs, unicorn (yes ONE exists in the game), goblins, trolls, skeletons, ghosts, zombies, etc. Only one water animal exists in game. The Slaughter Fish ( elongated body, huge fangs, tries to eat you). With this you will also encounter many demonic beings in the plains of Oblivion themselves.
No because it cannot target the creature. Read the hexproof ability
There are some free plugins at the Oblivion Nexus (I think).
You start talking to Ysabell instead of the battle master and do fights against creatures weekly for her. You can walk into the bloodworks at any time.
No. The daedric realm, Oblivion, has no single ruler. While some of the daedric princes are more powerful than others, they all rule over their own domains.
It is fairly easy to mod oblivion for the PC. You can't get a pistole in oblivion for the 360 or ps3 but some one could make a new weapon type and design a pistole or for that matter anything. Oblivion is a canvase to what ever you want in a game
oblivion. shiiithead.