Bungie detail how Strand will work in Destiny 2: Lightfall

When Lightfall launches in a few weeks it will bring a brand new Super to the game, Strand. In short, this allows you to “weave” Strand in to devastating weapons or protective shields. Check out the trailer.

Strand will also bring three new debuffs:

• Suspend – A suspended PvE enemy is lifted off the ground for a brief duration and is essentially disabled. In PvP, suspended players are lifted off the ground but can still move (albeit slowly) and fire their weapon to fight back.
• Unravel – Attacking an unravelled enemy will cause threads to burst out of the target and attack other nearby targets. Once hit, that target will also become unravelled.
• Sever – A severed enemy is less capable of affecting the material world, reducing their damage output as a result.

Warlocks have these Strand Aspects to utilize:

• Weaver’s Call: On Rift cast, the Warlock weaves three Threadling eggs, which hatch into Threadlings when they hit a surface. Any perched Threadlings are converted to additional eggs.
• Mindspun Invocation: This Aspect improves several of the Warlock’s abilities:
• Grapple: When you execute a grapple melee, the Warlock weaves three Threadling eggs from the target.
• Threadling Grenade: You can consume your Threadling Grenade to generate a full complement of perched Threadlings.
• Shackle Grenade: You can consume your Shackle Grenade to gain a buff, creating a suspending detonation on every kill.

Two Strand Aspects will be available for Hunters:

• Ensnaring Slam: While in the air, press the air-move input to slam downward, suspending all nearby enemies.
• Widow’s Silk: This Aspect grants an additional grenade charge. The Hunter’s grapple ability creates a persistent grapple Tangle when it latches, which fully refunds grenade energy when grappled to. Hunters can use this ability to set up chains of grapple points that their entire team can use, greatly enhancing their ability to quickly move around in combat and/or traverse the environment.

Finally, Titans will also have a pair of Aspects:

• Into the Fray: Destroying a Tangle weaves Woven Mail unto the Titan and nearby allies. In addition to reducing damage taken, this Aspect also increases the Titan’s melee energy regeneration while wearing Woven Mail.
• Drengr’s Lash: When the Titan casts their class ability, the Titan will blast forward a powerful ripple in reality, suspending enemies that are caught in the shockwave’s path.

There are also four new Fragments:

• Thread of Ascent: Activating your grenade ability reloads your equipped weapon and grants increased weapon handling and airborne effectiveness for a short time.
• Thread of Fury: Damaging targets with a Tangle grants melee energy.
• Thread of Finality: Finishers generate Threadlings.
• Thread of Warding: Picking up an orb of power grants Woven Mail.

Source: Bungie