[0.983-0.99] Slaves
I created cheap Slave in Unit Design:

Cheap Slave costs only 1 production. So I build one Slave per season in each city. No enemy AI can stand against Slave rush. I conqueir their cities and build one Slave per season in conquered cities. Imho overpowered.
[0.99] Slave scout for 12 production. Is it balanced?
