i know i encountered somewhere early in the game but couldnt afford it, now with imoen back i'd like to purchase it.

Try the Blacksmith in Tradesmeet.

What does it do?

This powerful Mage Robe offers protection from all forms of physical attack while at the same time increasing one's magical resistance and saving throws. Due to the nature of its enchantment, it can only be worn by mages of good alignment.

STATISTICS:

Armor Class: 5
Magic Resistance: 5%
Saving Throw: +1 bonus
Weight: 6
Only usable by:
Mage (single, dual, & multi-class)
Good-aligned characters

Is there a Robe of the evil arch magi?

There is in BG and IwD so i guess there should be one here, if so where is it and how much does it cost or where do you get it or who do you kill?

I don't think this counts as a real spoiler, so I'll only skip a few lines..
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It can be bought in Ust Natha for a whole lot of gold. Get it from one of the merchants near the entrance. Sadly, if you already did the Underdark the window of oppertunity is gone. You can also get one from Lazarus Librarius in ToB. There might... *might* be another one in SoA but I'm not sure.

thanks

There is another Evil robe in SoA, but you can't get it until the VERY end of the game. So you might as well just wait for the ToB one.

I checked the smithy in Trademeet and the only robe he had was a traveler's robe, doh! Does anyone know for sure whre the robe of the good archmagi is?

bump, help!