Ok its completly free
Supscription is $10 month for 2 accounts
Perks:
5% attack
2 New Units
Stats can increase to 120 past 100
Players can 'reincarnate' (start again slightly stronger, multiple reincs make the player eventually stronger)
Its possible to asilt level to 50 (top level) in a few ,oths (weeks for geeks ;P)
Good Game, Got lvl 50 5 reinc so kinda got bored.
Huuuuge playerbase
I recommened giving it a go.