Black Sigil: Blade of the Exiled Hints & Cheats

Collect the five armaments after the world is fused, then return to Isapolis.

To obtain Doll, one of the two secret characters, you must first get Nephi after visiting the entrance of Isopolis. Once you have done that, go back to the Corridor of Clouds and return to the entrance of Abraxus' Tower. Instead of entering the Tower, simply go to the right and examine the door you see there for Nephi to unlock it. Once you have done that, you must locate where a purple person is and examine him, after a brief scene, you will now have Doll in your party. Be sure to scour the workshop to get useful armor for your party!

After The Forbidden takes control of Vai and partially fuses Artania with the Black Rift, you can obtain the Sigil equipment (previously the Armaments).

Once you have Catalogues 2 and 3 you can buy and sell from them by traveling to an unmarked island on the south east corner of the world map. Talk to the owner and buy a few Eternias from Catalogue 2 for 30,000 and then exit out. Talk to the owner a second time and sell the Eternias to him through Catalogue 3 for 750,000 (profit of 720,000). You can do this to max your money at 9999999 in seconds and then buy infinite stat potions from Catalogue 3.