[Polaris]

Everyone,

You are forgetting about Charge Powerstone (G: Magic page 126). Other than the Powerstone spell itself, it's only other requirements are Lend Energy (which any mage worth his spells will have anyway in order to have Recover Energy...something all Mages should probabaly have), and Magery III which is highly probable for anyone that can make Powerstones in the first place.

Assuming that 1 pt gives you powerstone at a 15 skill, it would only take 4 extra points to get Charge Powertone at a 16. You want Charge Powerstone at a 16 because a 17 roll with this skill only quirks the stone rather than destroying it.

Thus a 12 fatigue wizard could recharge a 12 strength stone in 3-4 castings at most and with the Recover Energy spell can do this fairly quickly (a couple of hours tops).

IMHO and IMX, Powerstones really only come into their own when married to Charge Powerstone. Of course there is a risk, but with a high enough Charge Powerstone spell-skill, it really is a minimal risk.

-Polaris