I bought 11 my buddy bought 20. We eached used one. During the 4 hour window I got one exotic he didn't get any. We used another three of coins once again i got one in 4 hours this time he got one as well. There is no noticeable increased chance of getting exotics with these. I'm almost max light and have almost every exotic so it's no big deal for me, buy i feel sorry for people that expect good things from this.
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broken... useless