Lightweight Ancient Armor is one of the endgame armor sets added in Palworld 1.0, and its top-tier blueprint sits behind the World Tree tower fights. The Legendary version, Lightweight Ancient Armor Schematic 4, gives you a high-defense set that also boosts carrying capacity, and the most direct route to it runs through the hard mode Bjorn tower boss.
Quick answer: Beat the hard mode Bjorn tower (Jarl of Feybreak Bjorn & Bastigor, Lv. 80) for a 10% Lightweight Ancient Armor Schematic drop on your first-ever clear. Keep the schematic in your inventory and build the armor at an Ancient Workbench.
Where the Lightweight Ancient Armor schematic drops
The blueprint belongs to the World Tree armor family, so every source ties back to that region. The Bjorn fight is by far the highest chance, but a handful of low-odds pulls around the World Tree can still hand it over.
| Source | Drop chance |
|---|---|
| Bjorn hard mode tower (first clear only) | 10% |
| World Tree Fishing | 0.363% |
| World Tree Red Chest Fishing | 0.264% |
| Treasure Map (Legendary) | 0.149% |
| Ancient Relic Recycler (World Tree Relic 5) | 0.029% |
| Ancient Relic Recycler (World Tree Relic 4) | 0.008% |
| Ancient Relic Recycler (World Tree Relic 3) | 0.003% |
| Ancient Relic Recycler (World Tree Relic 2) | 0.001% |
Beat Bjorn on hard mode for the 10% roll
The target fight is the Jarl of Feybreak, Bjorn & Bastigor, at Level 80 on hard difficulty. Clearing it for the first time rolls a single 10% chance at the Lightweight Ancient Armor Schematic. That is a one-in-ten shot, so bring your strongest loadout and expect it may not land on the first attempt.
The schematic roll only fires on your first-ever clear of the tower. Rematches are unlimited and free, but they only award experience and never another chance at the blueprint. Tower bosses also cannot be captured, so there is no butcher follow-up to double the roll the way field Alpha Pals allow.
Note: Because Bjorn gives you exactly one roll, “farming” him is a single opportunity. If that clear does not drop the schematic, you cannot re-roll the same tower and will need to fall back on the World Tree sources below.
Farm the World Tree if the first clear misses
When Bjorn’s single roll comes up empty, the same schematic still appears from World Tree fishing spots, locked red chests, Legendary Treasure Maps, and the Ancient Relic Recycler. The rates are very low, so recycling relics is usually the most repeatable path since you generate the input through expeditions.
Craft Lightweight Ancient Armor at the Ancient Workbench
A Legendary Schematic permanently unlocks its recipe the moment it enters your inventory. It is not used up when you craft, so once the recipe appears you can build as many copies as your materials allow. The Legendary Lightweight Ancient Armor is built at the Ancient Workbench.
| Material | Amount |
|---|---|
| Paloxite Ingot | 60 |
| AI Core | 14 |
| Corrosive Solvent | 100 |
| Ancient Civilization Parts | 9 |
You know the drop worked when the Lightweight Ancient Armor recipe shows up at the Ancient Workbench while the schematic stays in your bag. If the recipe disappears, confirm the schematic has not been moved into a chest, since taking it out of your inventory locks the recipe again.
Tip: Duplicate lower-tier copies can feed the Drafting Table, which combines five schematics of the same item and rarity into one of the next rarity up. Since Bjorn drops the top tier directly, the table is only worth it when the cheaper tier has a strong rate of its own.
Lightweight Ancient Armor stats
The set leans on carrying capacity while still holding heavy defense and health values, which makes it a strong pick for long hauls where you are moving a lot of loot.
| Attribute | Value |
|---|---|
| Defense | 840 |
| HP | 2400 |
| Durability | 25000 |
| Weight | 35 |
| Additional effects | Cold Resistance Lv. 2, Heat Resistance Lv. 2, Max Carrying Capacity Lv. 4 |
Prioritize the Bjorn hard mode clear for the single best shot, then lean on relic recycling and World Tree fishing if that roll misses. Once the schematic is in your bag and the recipe is live at the Ancient Workbench, you can craft the armor as often as your Paloxite Ingots, AI Cores, Corrosive Solvent, and Ancient Civilization Parts hold out.
