The grind to Destiny 2: Shadowkeep’s raid is real so receiving an Exotic at 900 Power can be important for one’s growth. The good news is that Xur is currently in town and has a fresh set inventory. You can find him on Nessus in Watcher’s Grave on the Imperial Barge, where he’ll remain until the weekly reset.
Xur’s gear this week includes ACD/0 Feedback Fence (Titan gloves), Nezarec’s Sin (Warlock helm) and The Sixth Coyote (Hunter chest), each costing 23 Legendary Shards. Nezarec’s Sin is perhaps most recommended since it restores ability energy to Warlocks with Void kills, synergising well with Voidwalker. The other Exotics are good for the Power boost and little else (unless you like having two Dodges as a Hunter).
As for the Exotic weapon, it’s The Wardcliff Coil. This Exotic rocket launcher costs 29 Legendary Shards and fires a valley of rockets that deal a good amount of damage. It also automatically reloads when picking up Power Ammo. A good Heavy weapon to take into the raid, though a top-tier grenade launch will win out.