Can I kneel an already knelt character to pay for an effect? Can I stand a standing character? i.e. Cersi's Attendant says if she's killed, choose and kneel a character. Can I choose to kneel a character if it is already knelt?
King's Champion says that while he is the only King's Champion in play, he gains a Power icon. If King's Champion makes a Power challenge and I block with someone immune to character abilities, would he lose his Power icon?