When my opponent takes control of one of my dragons, can he use that dragon to satisfy claim? I was trying to find it in the rules, but I couldn't figure out if claim must be satisfied with cards you own or simply cards that you control.

J_Roel said:

Your opponent can pay claim with any card he controls. So, yes, "your" dragon would be a valid choice.

When the rules talk about "your characters" or "your cards," it always refers to characters/cards that a player controls. If something is limited to cards a player owns, it will say that specifically.

Okay, thanks for the quick replies, I'll need to be sure I can counter that card if it comes up…