This is a suggestion to rebalance troop unlocking and troops has a whole. The goal of this rebalance is to not only make all troops able to be used regardless of how high you climb, but also give room for devs to create new troops for the game, which can create new strategies.
The current system we have right now feels free, but also clunky and complex the more troops that get introduced. After all, it would be very annoying if I had to have to get a troop to level 5 to get a troop to level 5 to get a troop to level 5 to get a troop to level 5 just to unlock a troop.
Instead of troop level requirements for unlocking new troops, you will need to upgrade the Armory to unlock new troops. It will cost mana to upgrade and you will typically only unlock 1 troop. A rough concept of this can be found in the image below.
