Kitten Magician had good feedback. I'll give my own now.

+1 Con-Fine. Good stat for everyone, but fine.

Speed 30'-Fine.

Otherworldly Instincts-Assuming you mean the 1st level spell castable at-will... Too good. Make it something more akin to a Paladin's Divine Sense.

Child Of Three Worlds-Does it bar you from being affected by Hold Person and similar? Needs more information.

Natural Weaponmaster-Eh, whatever. Not a big deal.

Unwavering Will-WAY too good. Frightened is a common and potent condition. Sleep is technically more potent, in most situations, but also highly niche.

Horsemen's Rage-As a race defining trait, it's fine. As one of many, it's not.

War-Way too weak, relative to the rest.

Death-Seems reasonable.

Fury-Too good.

Strife-Too good. Also, since talking is a free action, there's really nothing stopping you from building a crap Charisma character, failing checks all the time and getting tons of advantage.

Absalom-WAY TOO GOOD. Take the Poison Spray cantrip or be in a party with anyone who has that, and you have unlimited healing.