M'uru is the fifth boss of 25-man Sunwell Plateau, waiting in the Shrine of the Eclipse, and this page is that one encounter rather than the six-boss clear. The pre-order starts at $127.79.
It is really two fights. M'uru is ground down first, and at low health he collapses into Entropius - the second phase, and the real DPS and healing check. Raiders agree Entropius is the hardest encounter of the tier, which is exactly why Blizzard deliberately does not apply Sunwell Radiance - the +5% mob hit and -20% player dodge that taxes the first four bosses - on M'uru.
He is the gate to Kil'jaeden. The final boss does not open until M'uru is dead, so a guild parked at 4/6 normally spends 2-4 reset weeks on this single encounter before it ever sees Kil'jaeden. Sunwell Plateau runs a 7-day lockout, so that is one attempt window per week - which is what the runs counter above is for.
What he drops: the Sunwell table including Shadowed Gauntlets of Paroxysm. Yrma, the Transmuter of Sin'dorei Relics, trades those gauntlets plus 1 Sunmote for Gloves of the Forest Drifter, the alternate-stat item in the same slot. The Sunmote farm covers that side of the swap; the Eredar Twins kill is the boss immediately before him, and the Kil'jaeden kill is the one this unlocks.
This is a pre-order. Sunwell Plateau arrives with Phase 4, Fury of the Sunwell, in autumn 2026, and Blizzard has announced no date. You lock today's price now and the run is scheduled on the first lockout after the phase goes live. Sunwell Plateau needs no attunement, so there is no key chain to grind first. US realms are the default; EU is on the region switch above.



