Walkthroughs for custom maps.

Interesting. I haven't reached this point yet (I put the walkthrough on hold in December). But I'll try to guess. I see in the Prospector that the Sphere of Permanence is not required by any Seer or Gate Guard. This means it might only be needed for us and only in battle. There are 2 possible uses for it: either to prevent the enemy from removing our "good" spells, or, conversely, to remove the buffing spells from enemy troops without removing the "good" spells from our own troops. But will we have 99999 of each resource? It's unrealistic to accumulate, and exchanging might be possible someday. Or are they somewhere, or is this quest not meant to be completed at all?