Ok so a while ago there was a thread about how if you attack with both John Snow (core) and Ghost (core) you only claim one net power because the trigger for "john snow or ghost claims a power" is wining a challenge in which one or both of them participated.
Does this "one response per one trigger" concept apply to all responses that need a trigger? Can I kneel 3 Training Vessels to give an attacking Raider +6str and discard 3 cards if I win? Is there a reason for the restriction of "one per challenge" on Superior Claim?