A simple change

[NTJedi]

Please make mages automatically use gems from a lab (if present) to cast their scripted magic.

This is not a good idea.
8 earth mages could easily use 70 earth gems in a battle which would definitely cause more pain playing the game. If players don't give the gems to the mages the mages shouldn't be allowed to use gems.
On a side note:
I've had cases where a level_7 air mage would use all the air gems in the battle before storming a castle... thus the battle in the castle my units wouldn't get mass flight or arrow fend causing more units lost.