[The Panther]

Actually, the single best solution to clam hoarding would be to make water magic useful.

For a start, they ought to eliminate the inability of casting water magic on both land and water. Make water spells unique in that they all could be cast either land or water. Excepting the auqatic or land summons, of course.

But really, why on earth can niefel flames not be cast underwater? You spend all that mage time as Atlantis getting to level 9 and can't even use it in your most powerful dominion of your home territory.

As it stands, water gems are most useful for turning into astral via clams.