Ok, so 50% is the increased chance of receiving an Exotic engram. I ran a total of 7 hours, consisted of 3 dozen HEROIC public events and two dozen HEROIC strikes. I received one Exotic Engram in the final hour of that play time. 50% you say? 50% of what base percentage? I can tell you that base is dismally small. First off Bungie recently said in patch notes that the drop rates on Exotic engram in public events was lessened. So the "effect" of the 3oC on them for all we know is nominal depending on the percentage that engrams were nerfed on public events in the first place. Second in Heroic strikes what was the percentage of Exotic engram drop rates when they came out with the DLC drop? Again 3oC "effects" could be nominal. 50% of what? For all I know the one Exotic engram was a random drop that generally would have dropped without the "effect" of 3oC. The only thing I didn't test was whether or not using the Vanguard boons for Fireteam Medallions had an adverse effects on 3oC. Judging by Bungie's hidden XP modifications it wouldn't surprise me to find that one of these items cancels out the effect on the 3oC and it not be communicated to us. Or course I'm looking at other avenues for acquiring Exotics I don't have, but the 3oC's "effect" is not worth the shards. Give us numbers, something that shows us what is worthwhile to use.