mimic
Magic Box
Decius and Flauros build the GM for 60 hammers and will get it before turn 100. They'll get about +8 hammers per turn per city ever after that. If they use Aristofarms (which they should) and Ashen Veil (which is likely enough) then it can be +25 hammers per city by turn 200.
Its pretty sickening.
I see, so would halving it be enough do you think?