nope, you just pay $15 a month. RotW you only pay for once, and even if you uninstall the game, you will not ever need to repurchase it unless you do a new account. (not new character)
Battle is a pure form of expression. It is heart and discipline, reduced to movement and motion. In battle, the words are swept away, giving way to actions-- mercy, sacrifice, anger, fear. These are pure moments of expression.