what's the deal with this stone? i'm convinced the drop percentage is grossly inaccurate. the level 35 stone is listed as having a 2.0% drop rate, but i've spent the last 5 days on back to back runs with no luck. spent over 400 platinum on 30 minute 3x serums and no luck. in fact, i haven't seen this stone drop AT ALL. not in solo missions, and not in multi player missions. the obsidian crystal has a 0.3% drop rate and i've seen it drop 5 times already since the update. hasn't dropped for me yet, but at least i know it exists. what the hell's the deal with kriegberg?