http://img848.imageshack.us/i/gemst.jpg/
Well here is a shot of my gem stockpiles and production. I also have around 40+ clams and maybe a dozen earth blood stones. Producing 3 fully geared tarts a turn as well as a bunch of other lesser summons. A wish capable caster to pull out fun things like armageddon and if pushed I would put up burden of time as all my mages live like 400 years.
Buffed minotaurs and trolls are also surprisingly capable of taking down a lot of SC's and I have a ****load of them.