The warhammer has
"Response: After you win a Power challenge in which attached character participated, choose and discard from play 1 participating character with 1 or more power on it."
If I attach it to a renown character (or anyone else who has power themselves), then initialte a power challenge that is undefended or defended by characters with no power - do I need to meet this condition by discarding the attacking character?
Also a ruling on a raider card - can't remember the name, but they had the ability to kneel themselves or a warship to reduce the cost of playing a character by 1, there is no indication of a limit so if you have 3 warships can you kneel them all and then kneel the card itself to pay for a cost 4 character? If not, and the reduction in cost is 1 for 1 character, can this ability be used to play multiple characters?