What is this? (Destiny)

by Xenos , Shores of Time, Saturday, May 23, 2015, 14:25 (3253 days ago) @ Beorn

Exotic Bounty that lets you choose one of the three Fallen exotics. I've been able to piece together this much:

* Only been confirmed to drop on level 34 and 35 PoE
* There are reports you can get it even when you've already beat that level of activity
* Confirmed to drop when you beat the boss, not from the chest (though there are rumors it can drop from the chests as well).