Xur is back and players can find him at the Tower this week. All Guardians can enjoy a moderately useful trace rifle while the Exotic armour pieces are situational for all classes.
Destiny 2 players can find Xur in the Hangar at the Tower this week. If you are new and don't know his exact location, you can spawn in the Courtyard and look at the map until you find Hangar. If you want to get there easily, you can set up waypoints to Amanda Holliday and once you reach her, turn left and go to the platform where the aircraft lands. Xur will be to the left of you, on top of some steps, as pictured below.
Coldheart is the Exotic Tract Rifle that goes in the Energy slot. Those who decide to purchase it will likely benefit more in PvE from it since the gun's damage increases the longer it is fired on a single target, making it potent at killing bosses and elites.
Hunters can look forward to Knucklehead Radar this week as this Exotic is useful in both PvE and PvP, especially if you are new to the game and didn't get used to radar removal while aiming down sights. It is particularly powerful with sniper rifles in PvP as you will not be limited to the scope's tunnel vision and can know when someone's head is about to peek around a corner.
Titans are usually punch-happy but if you are one of those rare specimens who got tired of fisticuffs, Armamentarium might be the Exotic for you as it gives an additional grenade charge.
Arc Warlocks are favoured with the Nine this time around as they can get Crown of Tempests. It will not win any beauty competitions but this headgear will help you charge Arc abilities faster, provided you kill enemies with one of them.