Lurker in the Dark

Feat 6

Frequency once per day

You were born in the dark, molded by it. You have greater darkvision and you add the darkness spell to your dirge. Once per day, when you cast darkness you may cast it using only 2 actions, instead of 3.

Mortis Draconic

Feat 8

You call forth an undead dragon, wreathed in shadows. You learn the mortis draconic grave spell.

Dark Rider

Feat 10

Through earned favours or dark pacts, you have secured a means of passage through the Netherworld. Add umbral journey to your dirge. Whenever you cast umbral journey, an umbral dragon—or a facsimile of one—greets you in the Netherworld and offers to fly you and up to 5 other creatures to your destination.
The dragon has a flying travel speed of 12 miles per hour, which means it can cover 6,912 miles of distance in the Universe before the spell ends.
The dragon flies directly in a straight line to the destination you give it. It's up to the GM if it knows where your given destination is, but typically it knows where all cities, large towns and significant landmarks are.
The dragon's patience is not unlimited. Once you accept the dragon's offer, it will not appear again until 7 days have passed.

Primeval Fear

Feat 12

Prerequisites shadow grim fascination

What lurks beyond our sight—in shadow and darkness—provokes a deep, primeval fear in most creatures. Dragons, ancient predators, provoke a similar primeval fear response. With the power of both darkness and dragons in your grasp, you can strike fear into the hearts of any who stand against you.
You have resistance to all damage from frightened creatures equal to half your level.
Whenever you destroy a thrall, you may demoralize a creature within 30 feet of that thrall as a free action. This demoralize action may use your Necromancer spell attack roll modifier instead of Intimidation for the check, and creatures are not immune to it if they have been demoralized by you within the last 10 minutes, nor do they become immune.

Steal Shadow

Focus 1

Range 30 feet; Targets 1 of your thralls
Defense Fortitude; Duration 1 minute

You command a thrall to steal a creature's shadow and replace it. The target thrall targets a creature with a shadow within its reach, the target must attempt a Fortitude saving throw. The target thrall is destroyed.
Critical Success The target is unaffected.
Success The target is enfeebled 1 for 1 minute. As long as the target is enfeebled by steal shadow, you have a special shadow thrall that occupies the same space as the target and does not impede movement. It is like a normal thrall except you cannot command the shadow thrall to move, it instead automatically moves with the target. The shadow thrall can be targeted and destroyed as if it were a regular thrall. If the shadow thrall is destroyed, the effect ends.
Failure As success, but the target is enfeebled 2.
Critical Failure As success, but the target is enfeebled 3.

Mortis Draconic

Focus 4

Range 30 feet;
Duration 1 minute

You conjure forth an undead dragon with wings of shadow and breath of the void. You create a Large thrall within range. This thrall has 40 hit points, a speed of 25 feet and a fly speed of 25 feet, and its attacks have the benefit of a ghost touch property rune.
When you use thrall charge you can forgo moving and attacking to instead command it to unleash its tenebrous breath. Creatures within a 30-foot cone originating from your draconic thrall will take 2d6 void damage with a basic Reflex save.
Heightened (+1) The thrall’s hit points increase by 10, and the damage of its tenebrous breath increases by 1d6.