Brynja's Beacon
Quest reward from Aftermath. It changes the model of the Spirit Healer to a Valkyr model. There seems to be no trackable buff or any visual indicators besides that.
The 
Brynja's Beacon is a Battle for Azeroth toy obtained through a quest that transforms your Spirit Healer into a Val'kyr model for a limited duration.
Guide awaiting review
Use Brynja's Beacon
Activate the toy to replace your Spirit Healer's appearance with a Val'kyr model. No buff or visual indicator confirms the effect is active — the change is only visible when you die and interact with the Spirit Healer.
Understand the Duration
The toy's effect lasts 24 hours of cumulative /played time, not 24 hours of real-world time, and activating it on one character also applies the Val'kyr appearance to your alts.
Note the Spirit Healer Stacking
The toy spawns a second NPC on top of the original Spirit Healer, resulting in two Val'kyr NPCs stacked together at the resurrection point, both replacing the standard Spirit Healer model.
Tips
The Val'kyr appearance persists across multiple deaths for the full 24-hour /played duration.
