The weekend has arrived, meaning mysterious Destiny merchant Xur is back, as well. The vendor is the only one in the game to sell exotic weapons, and every week is different than the last.
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This week, Xur is in the Hall of Guardians, just down the main stairs and off to the left. He's in a new location from one week to the next, and his stock differs every time. Xur appears on Friday (4 a.m. Eastern) and departs overnight between Saturday and Sunday.
Xur always sells three exotic armor pieces--one for each class--and an exotic weapon. Since The Dark Below's release, Xur also offers an Exotic Shard, which is needed to upgrade old weapons. Here's the gear on sale this weekend:
Titan Armor: The Glasshouse Helmet
Warlock Armor: Obsidian Mind Helmet
Hunter Armor: Achlyophage Symbiote Helmet
Exotic Weapon: Ice Breaker Sniper Rifle
Now that we're post-expansion, Xur has a selection of items to upgrade in addition to his normal wares--the new list you see in his inventory is not simply gear for sale. You need the original weapon or armor piece to trade in for an upgrade, an Exotic Shard, and some Glimmer--this is meant to keep original exotics gained before the expansion relevant and up to par with the new gear.
These are the exotic weapons and armor available for upgrade: Achlyophage Symbiote, Lucky Raspberry, Crest Of Alpha Lupi (Titan), No Backup Plans, Skull Of Dire Ahamkara, Light Beyond Nemesis, Bad Juju, The Last Word, Plan C, Pocket Infinity, Thunderlord, Gjallarhorn.