Ghoultar's head resembles a skull with light, pale eyes, the rest being transparent light green with a dark blue half-mask. He wears a purple straw hat as well. He also uses new ghostly black armor with purple robes on his torso and spring green, ghostly printing. The ghost's arms are dark grey and his hands are white. Ghoultar has a new, trans-green and light green ghost piece instead of normal minifigure legs.
As his title states, he uses different varations of scythes. One using a black spear with a ghost sword as a blade and a double headed scythe with black blades and a transparent green staff in it.
- He ties with Wrayth as the most common Ninjago ghost.
- His name is a combination between "ghoul" and "tar".
- His face is similar to the Cemetery Warrior from Indiana Jones, but in trans-light green.
- Ghoultar, Bansha, Soul Archer, and Wrayth are the only Ghost Warriors to use the ghost tail piece.
- He is seen a number of times in different promotional season posters, along with Bansha, Soul Archer and Wrayth.
- He is the only weapon master that doesn't appear with legs in any set.