You'll find Xur on Calus' Nessus barge this weekend, down in Watcher's Grave. He'll be around until 10am PST / 1pm EST / 6pm BST on Tuesday, August 27. Look for him near the outdoor tithe chests on the deck of the barge.
Here's everything Xur is selling this weekend.
Xur Exotic inventory for August 23 - August 27:
- Weapon - Arbalest: the only kinetic linear fusion rifle, this weapon fires slugs that deal massive damage to all elemental shield types. Breaking a shield with this weapon will increase the damage the target takes from all kinetic weapons for a short time, leaving them vulnerable to follow-up shots. A great pickup if you missed it during last year's holiday event, but a niche weapon overall. That said, in activities with lots of different shields, like the Zero Hour mission, it's very strong.
- Hunter Exotic - Shinobu's Vow: improve Skip Grenade tracking and grants an additional Skip Grenade charge. Damaging enemies with Skip Grenades will return grenade energy. Skip Grenades aren't that strong even with Shinobu's Vow, and there's really no sense running a weak Exotic to make weak grenades kind of OK.
- Titan Exotic - Ashen Wake: fusion grenades explode on impact and travel faster. That's it. Yes, this Exotic is breathtakingly useless.
- Warlock Exotic - Verity's Brow: kills with energy weapons increase grenade recharge rate for you and nearby allies. The energy refunded by this Exotic is negligible, especially for nearby allies, and it's outclassed by other grenade-centric Warlock Exotics like Contraverse Hold.