Ok I'm just double checking, but according to the rules it doesn't mention needing line of sight when the Paladin Activates his Chivalrous Challange. All it says is 2 spaces. So this is me double checking if line of sight is needed. In my logical opinion, I feel like it needs line of sight, but that doesn't seem to be the case.
Oh, and in case you guys are wondering, I'm the one playing the Paladin in this game, hah---I just want to make sure I'm not cheating my opponent.
Thanks!