[quote="Thalon Mercrow":34tk653g]but this begs the question where in the nine hells do arcane energy come from now some of it came from the weave but it dos not come directly from the waeve as magic can be cast without the use of it and when Mystra was murderd magic still contioned to exist. also if all arcane magic did come from the weave then it would no longer be consoderd arcane as it would have come from a god (Mystra)[/quote:34tk653g]
Magic originally came from the goddess [url=
http://forgottenrealms.wikia.com/wiki/Mystryl:34tk653g]Mystryl[/url:34tk653g]. She embodied the [url=
http://forgottenrealms.wikia.com/wiki/Weave:34tk653g]Weave[/url:34tk653g]. In -339 DR a Netherese wizard called [url=
http://forgottenrealms.wikia.com/wiki/Karsus:34tk653g]Karsus[/url:34tk653g] created a [url=
http://forgottenrealms.wikia.com/wiki/K ... r:34tk653g]12th level spell that would allow him to temporarily steal the power of a deity[/url:34tk653g]. He cast this spell on Mystryl. Karsus was unable to cope with the power of the deity Mystryl was unable to hold the Weave together. Karsus's plan (to use the power to defeat the phaerimm) backfired and many of the magical floating Netherese cities fell (with the source of magic chopped off).
Mystryl selected a young wizard and turned her into [url=
http://forgottenrealms.wikia.com/wiki/Mystra:34tk653g]Mystra[/url:34tk653g], a new goddess of the Weave. During the [url=
http://forgottenrealms.wikia.com/wiki/T ... s:34tk653g]Time of Troubles[/url:34tk653g] Ao forced all the gods except Helm to walk the earth as mortals. Before loosing her godhood, Mystra put part of her power into a pendant and gave it to one of her Chosen called Midnight. While Mystra was a mortal the Weave became dangerously unpredictable. Mystra later attempted to force her way past Helm and Helm destroyed her.
Ao chose Midnight to become the third godess of magic. She chose to change her name to Mystra to make the transition easier, so [url=
http://forgottenrealms.wikia.com/wiki/M ... 9:34tk653g]Midnight is actually the second deity called Mystra[/url:34tk653g].
In 1385 DR [url=
http://forgottenrealms.wikia.com/wiki/Shar:34tk653g]Shar[/url:34tk653g], who controlled the [url=
http://forgottenrealms.wikia.com/wiki/S ... e:34tk653g]Shadow Weave[/url:34tk653g] worked with [url=
http://forgottenrealms.wikia.com/wiki/Cyric:34tk653g]Cyric[/url:34tk653g] to kill Midnight (Mystra) and steal her power. But Shar's plan backfired. The death of Mystra caused the collapse of both the Weave and the Shadow Weave and set off the [url=
http://forgottenrealms.wikia.com/wiki/S ... e:34tk653g]Spellplague[/url:34tk653g]. The Spellplague continued until 1479 DR, with an event known as Mystra's Return. Part of Mystra had survived and was hiding out in a bear (go figure) and Elminster managed to return a lot of the goddesses power.
So it looks like you need a goddess of magic to make arcane magic work normally in the Realms and that if you screw with the goddess you screw with the Weave too.
(Presumably Mystra putting part of herself into a bear means that Eilistraee may well have hidden part of herself in an animal a random Miyeritari worshipper or even a non-drow worshipper. Or maybe Bobby Ewing will walk out of the shower into Eilistraee's bedroom and she will wake up and tell him she has had a terrible dream about a Spellplague.
)