Order of the External Planes

Over the years there has been a secret order of Bloodhunters, and in that order there are 3 sects. Each specializing in hunting creatures of the external planes. One for the Feywilds, one for the Abyssal, and the last for the Infernal.

Specialized Hunting

Starting at lvl 3 you choose a sect from within your order between Feywilds, Abyssal, or Infernal.

Rite of the Planes

Also, at 3rd lvl the extra damage dealt by your rite now does Psychic (Feywilds), Force (Abyssal), or Necrotic (Infernal) damage

Planar Bond

At 7th lvl you have become more familiar hunting monsters from your chosen sect, you gain resistance to Psychic, Force, or Necrotic (Depending on your sect).

Planar Brand

At 11th lvl when you attack a creature under the effects of your Brand of Castigation, they lose all resistances and immunities to Psychic, Fore, or Necrotic (Depending on your sect), also they become venerable to Psychic, Force, or Necrotic (Depending on your sect) from attacks made by you.

Also, while you have your Rite of the Planes active, attacking an enemy under the effects of your Brand of Castigation, your weapon damage become Psychic, Force, or Necrotic (Depending on your sect).

Planar Curse

At 15th lvl you learn a specialized blood curse from your sect. This blood curse doesn't count against the number of blood curses you know and is always prepared.

Feywilds - As an action choose a creature that you can see within range. The target must succeed on a Wisdom saving throw or be paralyzed for 1 minute. The target may attempt another wisdom at the end of each of their turns.
Amplify - As an action choose a creature that you can see within range. The target must succeed on a Wisdom saving throw or be paralyzed for 1 minute.
Abyssal - As an action Choose a creature that you can see within range. The target must succeed on a Wisdom saving throw or become frightened of you for 1 minute. The target may attempt another wisdom at the end of each of their turns.
Amplify - As an action Choose a creature that you can see within range. The target must succeed on a Wisdom saving throw or become frightened of you for 1 minute. 
Infernal - As an action Choose a creature that you can see within range. The target must succeed on a Wisdom saving throw or become charmed by you for 1 minute. The target may attempt another wisdom at the end of each of their turns.
Amplify - As an action Choose a creature that you can see within range. The target must succeed on a Wisdom saving throw or become charmed by you for 1 minute.

External Planar Mastery

Starting at 18th lvl you have mastered your Hemocraft of the External Planes, learning how to hunt like the creatures from the External Planes, gaining one of the following benefits depending on your sect.

Feywilds - While your Crimson Rite is active you sprout spectral wings giving you a flight speed of 30 ft
Abyssal - While your Crimson Rite is active you gain the ability to use Misty Step once per turn as a free action
Infernal - While your Crimson Rite is active you gain 30 ft walking speed.