Plague Lord

The power of plagues can’t be denied. A single disease can single handedly overwhelm a nation, or even an empire. Necromancers that realize the potential within sickness will often seek to wield that power themselves. These are known as plague lords, commanders of vermin and disease alike. A plague lord’s touch is toxic, vermin protect them from harm, can transfer their spells through unconventional means, and spread their filth to their thralls.

CHARNEL TOXIN

At 3rd level, even your touch can cause sickness. When you expend 10 or more points when making a Charnel Touch attack, the target must succeed on a Constitution saving throw against your spell save DC or be poisoned until the beginning of your next turn.

VILE CONGREGATION

Starting at 3rd level, leagues of vermin cling to your skin and swarm over others nearby. Whenever a creature within 5 feet of you makes an attack roll or saving throw, you can roll 1d4 and subtract the result from its attack roll or saving throw. This ability has no effect on constructs and undead.

PROJECTILE SPEW

Beginning at 6th level, your own inner nexus of
power has become a volatile cocktail of disease,
allowing your spells to have a far greater reach. You
can reach creatures out to 15 feet with your Charnel
Touch feature and spells with a range of Touch, as
you use magically imbued projectile vomit to deliver
your payload.
BLOATED THRALLS
At the 10th level, your thralls have become hives of
vermin and disease, ready to burst at any moment.
When a thrall drops to 0 hit points or you release
it, you can choose to cause it to explode in a shower
of poison, gore, and vermin. Each creature within 5
feet of the thrall, other than yourself and your other
thralls, must make a Dexterity saving throw against
your spell save DC. On a failed save, a creature takes
4d6 poison damage and is poisoned until the start of
your next turn. A creature is not poisoned and takes
half as much on a successful save.
LICHDOM: CORPULENT LICH
At 20th level, you have reached the pinnacle of
necromancy and transformed yourself into a lich.
Your obsession with disease and rot has affected
your transformation: your body engorges, much like
a waterlogged corpse, and your skin turns a sickly
green. You gain the following features in addition to
the Lichdom feature:
Gore Burst. When you drop to 0 hit points,
your body explodes in a shower of plague and
necromantic energy. Each creature in a 20-foot
sphere centered on you must make a Dexterity
saving throw against your spell save DC. On a failed
save, a creature takes 5d10 necrotic damage and 5d10
poison damage and is poisoned until the start of your
next turn. A creature is not poisoned and takes half
as much damage on a successful save.
Master of Disease. When you use your
Charnel Toxin ability and expend 25 or more points
from your Charnel Touch pool, the target creature
is poisoned for up to 1 minute on a failed save.
Additionally, you can also apply two of the following
effects of your choice which affect the creature while
it is poisoned:
• Choose one ability score. The target has
disadvantage on ability checks and saving throws
made with that ability score.
• The creature can only see out to a radius of 10
feet.
• The creature falls prone at the end of each of its
turns.
• The creature loses an additional 1d6 hit points
whenever it takes damage.
• The creature can speak only in a babbling
nonsense language while poisoned, and can’t
perform the verbal components of spells.
At the end of each of its turns, the creature can make
a Constitution saving throw against your spell save
DC, ending this effect on a success.