text: Destiny: The Taken King was released on September 15th for all the major platforms. This expansion was released after the major content update which was basically called “Destiny 2.0” by Bungie.
  Since the release of The Taken King, Bungie has made changes to the way people can get Exotic items via Xur. They have added a new item called Three of Coins, which can increase the chance that boss drops Exotic Engrams, including Weapon Engrams.
  Reddit user Parkwaydrive23 has managed to find a exploit that allows the player to farm exotics using these Three of Coins. You can read his method in detail below.
  I’ve been farming Scourge of Winter story boss. Get the checkpoint outside his chamber. Pop coin, snipe boss low, run in and rocket suicide to kill him. If he dropped loot, it’ll still be there. Rinse and repeat. Within 15 coins, I’ve gotten 3 chest exotics.
  Go in and kill him and yourself with a rocket launcher. Any loot will carry over after you revive at the checkpoint.
  Since Destiny: The Taken King was just released, it is likely that Bungie is going to patch out this exploit soon. If you want to farm exotics in an easy way, you can try this method before it is patched.