The next patch

[Graeme Dice]

Originally posted by Wendigo:
Even if it was, forfeiting the gem income from 20 turns (100 gems!) to get a +10 gem income is far from impressive. On standard settings I am pretty sure I could get a better income with half the investment by just casting a few search spells.

Who says you won't cast search spells? You must remember that water magic is essentially useless other than for quickness, so it's not a particularly big loss to convert all your water gems to astral ones. It does only take about 35 turns to get to 100 clams once you have a decent income in other gems, as that's exactly what I've done with R'Lyeh.

Even so, it's disputable that a clam strategy would be a better investment than an early casting of Voice of Tiamat on every sea: Sacrifice 10 gems for a 1 gem income, or 8 gems for a 2+ income?

No reason you can't do both. But once you've searched all your water provinces, there's no reason not to make clams.