Path of Exile 2 patch 0.5.4 adds Expedition Atlas tree, Orbs of Sacrifice, and level-scaling Uniques

Path of Exile 2 patch 0.5.4 is live, bringing a new Atlas Passive Tree for the Runes of Aldur Expedition content, level-scaling Unique Items, four new Orbs of Sacrifice currency tied to Atziri's Vault, and a wave of boss resistance and damage tuning across the endgame.

The Expedition overhaul is the headline addition. There's now a dedicated Expedition Atlas Passive Skill Tree — you earn points by defeating bosses in The Grand Expedition questline. A new currency, Liquid Verisium, lets you instantly kick off a Runic Remnant Encounter with a random Runic Inscription; it's purchasable from Farrow using Verisium once you've allocated the new Feeling Lucky? Atlas passive. Grand Expeditions now roll 1–2 Expedition Map Modifiers, and three new modifier types have been added: increased Runic Monster Markers, duplicated Runic Monsters, and additional Remnants in the area. Remnants also now randomly pick which Rune slot propagates to further monsters, rather than which Rune propagates per recipe — and the UI now highlights exactly which Rune will carry over when you complete a Remnant.

On the endgame side, killing Atziri, the Red Queen now has a chance to drop one of four new Orbs of Sacrifice from her Vault. These currencies upgrade Corrupted Enchantments on items at the cost of randomly removing an Explicit Modifier. The Arbiter of Ash has been toned down — his Chaos Damage bonus from plunging into the Chaos Sphere is reduced, and the damage buff duration after hitting either the Chaos or Cold Sphere drops from 30 seconds to 20. Several Pinnacle Bosses had their resistances quietly over-tuned; that's been corrected. The Lightless Serpent's Burning Ground damage in the Vessel of Kulemak fight is also lower now.

Unique Items that grant Skills now scale with your character: when equipped, the Skill starts at the lowest level you meet requirements for and scales up to the item's listed maximum as you hit higher thresholds — no more being locked to a fixed Skill level regardless of your stats. The patch also fixes a bug where Power Runes propagated from previously unearthed Remnants weren't actually empowering Runes in Expedition, and Thaumaturgic Fluxes now count toward the Any Flux condition for The Artisan Challenge and appear in the Fluxes section of the Currency Exchange.