venomancer

You have been gifted the ability to create a magical poison that you can control at will, allowing you to make deadly attacks or take controll over objects and creatures affected by your poison.

Magical Poison

Your body magicaly produces a special poison while you sleep, starting at 1st level, whenever you finish a long rest you create 1d4 vials of magical poison. When you deal piercing or slashing damage to an enemy using an object coated in this poison, they take an additional 1d4 poison damage. The poison retains its magical properties for 10 days and the damage increases to 1d6 when you reach 5th level, 1d8 on 10th, 1d10 on 15th and 1d12 on 20th.

You can controll the poison as if you were using the shape water cantrip.

Poison damage you deal through your spells count as your magical poison.

Poison controll

When you deal enough damage to a creature or coat an object with your magial poison, it becomes affected by it's magical properties for one minute, after this time a creature becomes immune to this ability for the next 24 hours.

Whenever you cast a spell that only affects affected targets, the spell slot consummed by the spell is instead one level lower than the level you casted the spell on. 

SIZE	POISON REQUIRED
Tiny	1 damage (creature) or 1/2 of a vial (object)
Small	5 damage (creature) or 1 of a vial (object)
Medium	10 damage (creature) or 2 vial (object)
Large	20 damage (creature) or 4 vials (object)
Huge	30 damage (creature) or 8 vials (object)
Gargantuan	40 damage (creature)

 

Potent Concoction

When you reach 6th level, you gain the ability to mix a vial of any poison with a vial of your magical poison, transfering the magical properties of your poison to the other. Doing this requires one minute per vial and your magical poison used is consumed, either by evaporating on a small poisonous cloud or precipitating to the bottom of the recipient used for the mixing.

In addition, you become proficient with the poisoner's kit and have advantage on ability checks that require its use.

Poisonous domination

At 14th level, you gain the ability to sense if creatures that are affected by your poison controll ability are bellow half of their total hit points, if they are they count as being only 1/4 of their weight and as also being objects in addition to their creature type for the purpose of targeting with your spells.

If you use a spell that gives a custom stat block to the target, instead you use the creatures own stat block.

 

Venomastery

Beginning at 18th level, your magical poison ignores resistances and enemies have disadvantage on saving throws against it. In addition, whenever you craft, harvest or create poison, you get twice the normal ammount. 

You can also chose to spend 1 minute magicaly altering one vial of your magical poison, causing it to become harmles. A willing creature that drinks the altered poison doesnt take any damage from it but is considered to be affected by your poison controll and poisonous domination abilities, regardless of the requirements.