Daedra are supernatural beings from the plane of Oblivion, the most well known of these are the Daedric lords such as Azura, Malacath and Nocturnal, then they have their servants under them, lesser daedra.
They are collectively called 'Daedra'.
Sometimes you can find a Daedric Curiass on some of the daedra in Oblivion. There are a few places in the game that are guarded by daedra. To get the Arrowhead of Extraction on one of the thieves guild quests, you have to go to a wizard's lair, and there are plenty of daedra there. You don't find them very often, but daedra corpses are the best place to look.
daedra, and bandits
look for a oblivion gate and kill deadra that is how you get the hearts you can clone them
Oblivion does not have regular spiders. However it has 'Spider Daedra' which are like spider centaurs, spider body with a human torso.
I dont know all of them but im pretty sure you can mod to make yourself a daedra... the daedra has its own birth sign by the way...
The Daedric Crescent Blade is in Elder Scrolls III: Morrowind. Bethesda included an artifact book from Morrowind in Oblivion, but many of the artifacts cannot be found in Oblivion.
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...
I'm guessing a relatively high level... probably between level 25-30
Goblins short and weak, trolls, stronger and weak against fire(?) Wisps and ghosts, immune to ost melee attacks, Zombies, slow and weak, rats, small and furry, vampires, turns you into a vampire, Daedra are ussualy found in oblivion(realm)
Daedra Charles was born on 1968-11-22.