With the Scorn, Destiny 2 introduces new enemies as part of the Forsaken expansion. You can now watch a video showing how the Scorn defend themselves.

New Enemies – The Scorn: With the Forsaken add-on on September 4, 2018, Bungie introduces new adversaries that Guardians must face – the Scorn. Although the Scorn are technically reanimated Fallen, you will hardly recognize them as such.
More than just reheated meals: Because they are not just revised versions of existing enemies, but entirely new enemy types – both visually and in terms of the abilities of the individual units. Accordingly, Guardians will need to learn new tricks and adopt different tactics if they want to effectively combat the aggressive Scorn.
Bungie has now shown what your future enemies have in store in this fresh developer commentary video.
By the way: The eight Barons also belong to the Scorn.
What do you think of the new enemies? Are you looking forward to the fight? Or are you not really drawn to the new design of the adversaries?