Grulash

A Gnollru demon that used Claude Silvester and Beaureguard McAlen to lead an army of Gnolls against Pinesdown. It specialized in using gnolls to scarf up resources after a battle.

If slain outside the Abyss, Grulash reforms in the Abyss (like any other Demon).

Grulash taints a 1 mile radius around where he resides.

All vegetation dies

all predators become wildly aggressive and kill in excess.

Flies accumulate in droves around the area such that they cause all light situation to shift one worse.

Anyone engaging in a long rest in this tainted area must make a Wil save DC 17 or gain a Madness of Yeenoghu (but only as a long-term madness lasting 1d10x10 hours)

Grulash served Yeenoghu

Yeenoghu gave Grulash a magic flail that also serves as a key to activate a portal

Grulash guarded a portal that connected:

The Abyss (Death Dells) - Grulash's Lair

The Abyss (Voguthuk) - Edge of Queen Peftexala's realm

Prime Material Plane (Feldspar Dungeon)

Yeenoghu was displeased with Grulash's failure to wreck havoc on Etolar... when it reformed in the Abyss, the demon lord put his head on a pike in the Death Dells where he survives in a bodiless state.