Despite the imminent season of the giving, Destiny 2's resident Santa decided to dish out a set of meagre Exotics this week.
Guardians started using the power of the Darkness recently which could be the reason why Santa wrote them all off as naughty and brought not-so-useful Exotics this week. You can find the aforementioned Santa, commonly known as Xur, in Winding Cove in EDZ this week. Spawn in the mentioned waypoint, turn left, go until you reach the fork in the road and then take the right path. Upon reaching the Fallen ship, either take the jumping path or the cave to get to the vendor.
Jade Rabbit is easily one of the best weapons to use in Momentum Control but there is just one catch - the mode was removed with Beyond Light launch. The weapon performs poorly pretty much everywhere else but Xur is selling it this week.
Foetracer can sometimes be useful in PvP for tracking the enemies that you hit but this headpiece is overshadowed by other Hunter Exotics such as Mask of Bakris, Stompies, Frosties and more.
Warlocks are getting a helmet that is sometimes useful in PvE. Felwinter's Helm will cause your powered melee kills to cause explosions that weaken everything around them. Bring Monte Carlo to make sure you can do this all the time.
Titans are getting Severance Enclosure which is basically the same as Warlocks' helmet except these explosions are damaging the enemies. It's useful when speedrunning strikes or lost sectors but that's about all there is to this Exotic.