Use the Upgrade Altar
The altar enhances equipment you already own. Select a non-stackable equipped or inventory item, inspect a compatible upgrade, and review the cost before applying it. Equipment transformations and custom effect upgrades are separate choices in the same station.
- Choose the actual item
Select the worn or backpack item you intend to enhance. The available effects depend on its equipment slot.
- Inspect the effect
Read the trigger and benefit. A chance on a successful hit is different from a constant damage boost or a killing-hit effect.
- Apply only after checking
The materials are consumed and the effect is attached to that item. The same effect cannot be installed twice on one item. Plan your three upgrade slots before spending.
Base custom-effect costs
| Next item slot | Lesser Sigils | Obsidian Catalysts |
|---|---|---|
| 1 | 25 | 1 |
| 2 | 50 | 2 |
| 3 | 75 | 3 |
Transformations have their own material costs. The altar's live preview is the final cost for the action you select.
Player-selectable upgrade reference
Obsidian Loot Attunement
Each equipped copy adds a 2% chance to roll an NPC's drop table one extra time.
Obsidian Emberbrand
A successful weapon hit has a 10% chance to burn an NPC for three hits of 2 damage.
Obsidian Mirror Edge
After taking NPC damage, has a 10% chance to reflect 50% of that hit back.
Obsidian Life Spark
A successful weapon hit has a 20% chance to restore 1 Hitpoint.
Obsidian Last Stand
Each missing Hitpoint adds 0.25% weapon damage, up to your current missing health.
Obsidian Venom Kiss
A successful weapon hit has a 10% chance to inflict 6-strength poison on an NPC.
Obsidian Finisher
Successful weapon hits deal 8% more damage while the NPC is at or below 25% health.
Obsidian Momentum
A successful weapon hit has a 10% chance to restore 3% run energy.
Obsidian Spirit Siphon
A successful weapon hit has a 10% chance to restore 1 Prayer point.
Obsidian Bone Warden
Each eligible NPC bone drop has a 1-in-6 chance to go directly to your bank.
Obsidian Coin Magnet
NPC coin drops go directly to your inventory, or to the ground if your inventory is full.
Obsidian Sanctifier
Each eligible NPC bone drop has a 1-in-6 chance to be buried for Prayer XP and restore 1 to 5 Prayer points.
Obsidian Antivenom Ward
After taking combat damage while poisoned, has a 25% chance to cure the poison.
Obsidian Prayer Grace
A killing hit has a 10% chance to restore 5 Prayer points.
Obsidian Scholar Thread
Each equipped upgraded armour piece multiplies all earned XP by 1.01.
Obsidian Bulwark Thread
Each non-zero incoming hit has a 5% chance to deal 20% less damage.
Obsidian Wind Thread
Each non-zero incoming hit has a 5% chance to restore 5% run energy.
Obsidian Aegis
Each non-zero NPC hit has a 1-in-12 chance to deal 25% less damage.
Obsidian Gatherer's Mark
Each supported gathering action has a 5% chance to add one extra resource to your inventory or ground.