So quick questions. Do you count as a valid target for your own abilities that target "Ally"? I imagine not since you have the "someone" version on other abilities.
And does Challenge stop you from using abilities that do things to yourself? Like are you unable to use Yell to gain power tokens or any other albitites that affect you yourself but not the enemy. Because I feel like me and my friend group may have massively misunderstood Challenge and made it more powerful than it actually is.
Oh and something else I thought up. Does Mastermind style bypass Challenge since you yourself can not preform actions and instead use your dice to make other people take actions for you?