[Stormbinder]

Originally posted by PvK:
Ok here's a suggestion:

Make Clams require Water-2, Astral-1, 10 Water and 5 Astral to forge.

This would slow the expansion, and require the forgers to have Astral magic as well, which is appropriate (since they create astral gems), and also harder to get the required forgers.

PvK

That would work too.