The Raven Trickster — Raven's Reflection and the Mirror in the Withered Willow
The Raven Trickster is the Delirium pinnacle boss added in 0.5. Being new, it appears in no earlier season’s guides, and the community often refers to it by its alternate name Tangmazu.
If you haven’t read it yet, Pinnacle Bosses covers the overall 0.5 structure.
Sort out the names first
Search for this boss and you’ll see “the Withered Willow” and “the Withered Hollow” used interchangeably. Both are real places, but they do different jobs.
| Place | Role |
|---|---|
| The Withered Willow | The Delirium hub. The Mirror here is where you use the key |
| The Withered Hollow | The arena where you fight the Raven Trickster |
The place you use the key and the place you fight are not the same. Conflating them sends you looking in the wrong spot.
The key — Raven’s Reflection
The key is Raven’s Reflection, and the item text spells out where it goes:
Witness the genesis of madness. Bring this to the Mirror in the Withered Willow.
You get it by completing a Simulacrum. From the official 0.5.0 patch notes:
Completing a Simulacrum will now give you a key to face the new Delirium Pinnacle Boss.
It’s classified as a Map Fragment and is a drop-restricted item.
Getting to a Simulacrum
The real gate on this boss is the Simulacrum — no Simulacrum, no key.
- It’s a 7-wave encounter (not the old 15).
- Combine 300 Simulacrum Splinters into a Simulacrum, then apply it to an endgame area that is already at least 100% Delirious.
- A fog bank from the Trial of Madness reaching 100% also spawns one.
So the full chain looks like this:
Run Delirium → 300 splinters or a fog bank at 100% → complete a 7-wave Simulacrum → Raven’s Reflection → Mirror in the Withered Willow → the Withered Hollow
How to actually run Delirium, along with fog banks and the Trial of Madness, is covered in Delirium Crafting.
Preparation
This is a boss where reaching it is the hard part, more than the fight itself.
- You need to clear 7-wave Simulacrums reliably for a steady key supply. Since 0.5.3 a Simulacrum starts at 100% Delirious and scales to 200%, so the later waves are not trivial.
- While farming splinters, put Liquid Despair on your Waystones (30% increased Simulacrum Splinter stack size) to speed up accumulation.
- For defensive fundamentals, see The Basics.
Public documentation on the Withered Hollow itself is still largely empty; this page will be expanded as details are verified.