That if you scribed/unscribed every scroll you can buy from waukeen's promenade (adventurer's mart + scroll shop), and watcher's keep, you can get 2.25 million, or a level 16 mage? Found that out when i dualled my lvl 15 swashie.

No, I didn't. How much cash does it cost to accomplish that?

That would be nice when soloing and you decide to dual in somewhere dangerous like say, the Underdark.

I have a feeling that dualling from a lvl 21 Assassin to a mage around that area isn't such a good idea ...

Lvl 1 mage Vs City of UsT Natha ... AHAHAHAHAH!!!

Wouldn't it just be simpler to use Shadowkeeper or some other editor thingie to give youself whatever experience you want rather than use whatever expoit you used to get all those scrolls and then take the trouble to scribe/rescribe them all? Oh, and while you're at it, a strength, dex and con of 47 or so...

It's kind of chessy IMO, though I've used it during various solos. The first time I ever dualed into a Mage was with a Kensai. I had saved every scroll I'd found and just read them all, without thinking about the XP gain. 'twas a nice suprised indeed ;)