Death Stalkers

'Averaging 7ft tall, death stalkers are large lumbering terrifying creatures. They have a large equine skull that covers their face. These creatures have the ability to teleport behind creatures that have seen them when they aren't being observed.'

Size: 6.5-7.5ft

Speed: 30

Languages: Infernal, Common

Terrifying Appearance:

Any creature who is seeing a death stalker for the first time must make a DC18 Wisdom saving throw or be frightened for 18 seconds.

Stalking:

You are able to tell whenever a creature has its eyes on you. If a creature who has seen you within the last minute and is no longer observing you, you can use your action to teleport behind them. If the creature is no longer on the same plane as you this ability does not work.

Observant:

At seventh level you are able to pinpoint the exact location of any creature who has seen you within the last two weeks. If said creature is on a different plane than you, you are able to tell that they are on that plane but not where on it.

Bringer of Death:

At fourteenth level while you are unobserved you roll all attack rolls at advantage.