All three of coins do is give you the exact drop rate for exotics you had before they nerfed the drop rates. In other words no change made to exotic drops except that you have to buy a buff to get them now. Honestly don't bs people that was exactly what you did and nothing else. If you are seriously looking to fix something however drop rates on tokens for events are massively broken like 44 tokens in 3 hours broken and that is on the edz (the fastest area) everywhere else is far far worse. You can't make a game based on grinding tokens for mediocre rewards then take the tokens away all you have left then is a no reason grind.