Some background: Night Stalkers or just NS are creatures created by the Night Stalker virus, which is a virus that one of my RWBY OCs created (Raven Mortem). The virus can only spread from either having the virus directly injected into you or when someone is killed by a creature that is already infected. NS creatures are human-like creatures that move mainly on all fours but do have the ability to stand up on two legs. NS creatures have the appearance of the dog version of the Demogorgon from Stranger Things but are completely black almost like a Symbiote. These creatures are easy to kill on their own but when they are in a pack they are very difficult to take down. People with aura have a natural resistance against the virus but those (civilians) who do not have aura are easily taken down by Night Stalkers.  There are seven mutated/special Night Stalkers that were personally created by Mortem after he developed the virus. These seven serve as generals in a growing army of NS, white fang, normal Grimm, and Salem's crew. 

Here are the special seven:

Pride (Lucifer): Pride is quite muscular and stands at about 8 feet. He is the leader of the 7 generals. He wields a large two-handed long sword that is pure black with a crimson red line down the center of the blade. Pride has the normal black gooey-like skin that all other Night Stalkers has, as do all the other generals and bright amber eyes. The only difference between the generals and normal night stalkers is that the generals have faces.

Greed (Mamon): Greed is a tall and slender creature who is able to teleport at will, he also always has a black after image following him (similar to Ghost from Ant-Man and the Wasp). Greed uses long poisoned daggers that glow green, his eyes also glow green.

Lust (Asmodeus): Lust can take the form of whatever form she desires. She has the ability to read a person's mind to find their greatest sexual desire. So her appearance is different to everyone, however, if you are able to resist her then her true form will appear which is a stereotypical succubus with purple eyes. Lust uses her large claws to kill her targets. 

Envy (Leviathan): Envy is able to take the form of anyone they kill or thoroughly/brutally interrogated. They are able to mimic the person's voice exactly making it almost impossible to tell that it is actually Envy disguised as the person. Envy also uses the weapon that the person they are disguised as once used. When not disguised as someone Envy has bright gold glowing eyes. 

Gluttony (Beelzebub): Gluttony is a massive creature standing at about 20 feet tall and weighing roughly 1 ton. (Look up Great unclean one more a good idea on what he looks like). Wields an enormous mace that can destroy entire buildings in a single swing. Gluttony's eyes are dark orange.

Wrath (Amon): Wrath is a large 10 foot tall Night stalker who is built like a truck and has four large arms. He, like the other generals, has a normal looking human face but has glowing red eyes. Wrath wields four jagged swords that he uses all at the same time with the help of his four arms. 

Sloth (Belphegor): Sloth is of average height and build but has large demon-like wings coming out of his back. He also has large/sharp claws on both his hands and feet. These being his primary weapon, he is also able to shoot large spikes from his hands as well, his eyes glow a dark blue.