You need to place the orb before you kill all the mini bosses. Otherwise the activity counts as complete and won't spawn the special boss. [EDIT] [quote]I was Fireteam leader and started Shattered throne. The person I had with me had played solo and cleared the first token boss at an earlier time. Does everyone in the fireteam need to have blank tokens? I also switched armor while holding the orb, would that break it?[/quote] No [quote]Also, this may have been intentional, but wiping while fighting a token boss means you need to play the entire Shattered Throne over again to fight it?[/quote] No. You just need to re-place all orbs for the section you died at. [spoiler]First token boss requires one orb, second requires two, third requires one.[/spoiler]