As always, thank you for your fast replies. Two more questions if you please.
1. Suppose I have a Copper Link attached on an Advisor to the Crown, a card which has a "justification" for kneeling built in. May I kneel him for no other reason other than activating the Chain's response? Typically, I have knelt him for Influence, in reality though I intend not to spend that Influence at all - it was just an "excuse" for activating the Attachment. Is it elligible or do I have to actually spend the Influence somewhere to justify the kneeling?
2. The text on Copper Link baffles me. What does "Limit once per phase" mean? The Response per se in not a Limited one. Does it mean that that particular Copper Link may be used once per phase, but, if I have another one in play (in the same character or not), then the other Link may activate its ability normally? This is the meaning of it I guess.