Age of Origins Permit Exchange Event

They change the name of this event but essentially you can kill zombies or sell some food and gold to get tickets which can be exchanged for items. Trade your gold and food every day for tickets. You can also buy tickets. One of the common items in the permit exchange is the helicopter which gives an attack boost for 900 points. The other good items in this event are the URANIUM or titan boosts. If this event happens during your zombie kill day of strongest commander then you should use everything you have to get as many tickets as possible while also getting massive points for the event phase. I like to save fuel just for this occasion. Look at my sheets page for price breakdowns of buying tickets for uranium trade.