Question came up about limits and cards being in play/out of play.
I have Rhaegal in play. I win a challenge he participates in and trigger his ability and have him claim a power. A couple of challenges later my opponent attacks me for a power challenge and decides to play a Game of Cyvasse to bump Rhaegal (my last standing character) back to my hand to win unopposed. Unfortunately he forgot that I still had 3 influence and 1 standing True Queen's Harbringer. So I put Rhaegal back into play, declare him as a defender and win the challenge. The question is can I trigger his ability again to claim a power? Does leaving play "reset" the limit?