Looking at perches;
This season perch levels went from 85-92
This requires 21,600 pearls
Pearls are only available on base boost branch and total 4,070
As towers go up, the prizes need to reflect this!! The same math should be applied for embers, ice and fire shards.
One line should have enough prizes to level ONE tower, let the player decide if it’s a perch, flak or turret and adjust the prizes each and every season.