We had these two cards duking it out the other day in my playgroup. I was controlling Nicanor in a multi-player game. I made a successful rescue against a player with RBD active, and he surrendered the Rejoice LS to me. Normally, under RBD, I wouldn't have my draw "insteaded" because I do not control the ability causing me to draw. My Nicanor insteads the Rejoice LS's, so instead of all players draw 1, all players draw 1
...HOWEVER I then controlled the draw ability, and got hit with RBD...