From 1d4chan
Mask symbol.png
2E/3E: Black velvet mask tinged with red
5E: Black mask
Aliases Lord of Shadows, Master of All Thieves, Shadowlord
Alignment 1E/2E/3E: Neutral Evil
5E: Chaotic Neutral
Divine Rank 1E/2E/3E/5E: Lesser God
4E: Dead God
Pantheon Faerûn
Portfolio Shadows, thieves
Domains 3E: Avarice, Darkness, Envy, Evil, Luck, Sloth, Trickery
5E: Trickery
Home Plane Great Wheel: Shadow Keep (Hades)
World Tree: Shadow Keep (Plane of Shadow)
Worshippers Spies, thieves
Favoured Weapon Longsword

Mask, is the god of shadows and thieves in the Faerûnian pantheon. This loner was most often associated with thieves or those of otherwise ill-repute. He went from solidly neutral evil to being a freedom-thirsty chaotic neutral intermediate deity from the Shadow Keep in the Plane of Shadow, whose portfolio included shadows, thievery, and thieves, and previously also included intrigue. Mask's symbol is a black velvet mask tinged with red. Did I mention he likes shadows? The reason for the alignment change was that the original Mask, Lessinor, died and the current Mask is Drasek Riven, one of the former chosen of Mask who absorbed the remaining divinity and took the position for himself.

Turns out he's the son of Shar for some reason, which likely has something to do with his shadowy nature. He also took the form of the sword Godsbane (again) which his MILF used to shank her OP Mary Sue daughter-goddess of magic - Mystra - during the 5E nukening/reset/second sundering. So the epic deity porno entitled: 'dusky MILF uses son to penetrate his sister' is accurate.

His clerics are known as 'Demarchs' even though they don't rule subsections of ancient Greece.

The Deities of Forgotten Realms
Lawful Neutral Chaotic
Good Ilmater - Nobanion
Torm - Tyr
Chauntea - Deneir - Eldath - Enlil
Gwaeron Windstrom - Lathander
Mielikki - Milil - Mystra - Shiallia
Lliira - Lurue - Selûne - Sharess
Sune - Tymora - Valkur
Neutral Azuth - Helm - Hoar
Jergal - Kelemvor
Red Knight - Savras
Siamorphe - Ulutiu
Akadi - Ao - Auppenser - Gond
Grumbar - Istishia - Karsus
Kossuth - Oghma - Silvanus
Tempus - Ubtao - Waukeen
Finder Wyvernspur - Ibrandul - Leira
Mask - Shaundakul - Uthgar
Evil Asmodeus - Bane
Gargauth - Gilgeam
Iyachtu Xvim - Loviatar
Auril - Bhaal - Myrkul
Shar - Velsharoon
Beshaba - Cyric - Garagos
Malar - Moander - Talona
Talos - Umberlee