Wrath - (Nether mob)

Wrath would be a hostile mob found exclusively in nether. Black cloaked figure, withouth face, with smoke in the place of its legs. It wouldn't look that scary in minecraft but still.

As i see it, it would have black hood that looks like a block(obviusly) but is hollow inside and up-front.
Middle part of the body would just be black with maybe hands and upper chest dark-grey.
The lower part would look like a Wither just dark grey(whole) or it woukd not have it at all.
There would be dark smoke coming from his entire body.
Wraths would fly high in the air, and dive down if they see the player. Sort of like dementors in Harry Potter.
They would be suprisingly fast but would have to use melee to hit.

Wraths would give you "Fear" status that would make you unable to run till the wraths are killed or far away. Alternativly it would just give you slowness or/and weakness.