...instead of Military/Economy. My reasoning for this is simple: It allows everybody to use the Great Person Policies that get unlocked by Civics in the Late Ancient Era instead of unlocking them but then not being able to actually use them until you unlock the other Governments in the early Classical Era. This would give a lot more strategical freedom by giving you access to 3 (4 if you count being able to beeline the Writer before the new Government) Boosts towards Great People. The reason I would want to replace the Economy slot is that it makes it so using these Cards is still quite an investment, as you'll lose the in some cases very strong Economy bonuses. This does of course have the potentially negative side effect of also allowing 2 Military Policies to be run at the same time, but within the limited options that are available of that time I don't see any effects that are too easy to abuse. You could of course combine one of the 50% production bonuses with the -1 Maintenance Card... and that sounds strong at first, but at the same time it is already possible to produce a ton of units and then switch to the -1 Maintenance Card - so it's not that much of a change (and Warriors don't cost Maintenance anyway).