Bungie unveiled more information on the upcoming Stasis subclass for Warlocks with info that extends to Titans and Hunters as well. All three classes will be able to modify Stasis.
Stasis subclasses are coming to Destiny 2 with Beyond Light expansion and while everyone expected them to be just the fourth addition to the existing ones, Bungie pulled a sneaky one on the players and unveiled the ability to modify these specialisations .
Technically, we already had some customisation options with the choice of grenade, movement ability and a talent tree in Arc, Void and Solar subclasses but Stasis will work in a different way.
Stasis subclasses will have these options but the main differences will manifest in the way of Aspects and Fragments. These two are additional layers of subclass customisation.
Aspects are physical items in the world, with Bungie citing a crystallised Vex conflux and robotic Fallen arms as examples. They can be slotted in, at which point the Guardian will gain new abilities and other effects. They can be mixed and matched freely by the player and there are different Aspects for each class.
It appears that not all Aspects will allow slotting of Fragments but most will do. They are essentially mods that can be applied to the subclass but the difference here is that Fragments work all around, regardless of whether a Guardian is a Titan, Hunter or Warlock.
Warlock Rifts serve as a great example of what kinds of alterations Aspects and Fragments can make. Frostpulse Aspect will cause the field to freeze hostiles who stand in it. Meanwhile, slotting a Whisper of Refraction Fragment will cause Warlocks to gain Rift energy when shattering frozen enemies which could create a loop of AoE freezing and damage if used properly.
One has to wonder how this will reflect on Control in Crucible though. Combine this type of Rift with Witherhoard and you can stop enemies in their tracks for significant amounts of time.