So, I was just thinking about this, given my recent comments regarding MP inflation. Would Might invested by a higher level god be more powerful than Might expended by a lower level god? A higher level god can do more things without Might, so when they invest Might it suggests that they're doing something that's powerful relative to their level. Thus, a 10 MP weapon created by a Level 1 god would not be equal to a 10 MP weapon created by a Level 10 god - if that makes sense.
I think this is hinted at (or maybe stated explicitly, can't remember) in the OP. But it brings up issues - how would this difference measured? Even if it makes sense, is it workable at all?