The Vampire Mask is an item that can be found anywhere in the A Modded Adventure map, or getting it by a chance in a Trowel, This will give you Vampire spec
If you have these stands/specs and used a Vampire Mask this will happen;
Star Platinum The World + Vampire Mask = Cream
The World + Vampire Mask = Vampiric The World
Vampire mask
Vampire + Vampire Mask = Kars
7.5 Minutes - 1/7 chance
can be sold to the black market for 30k bobux