Jsk Order of the Vileblood

Venomous Designs
At 3rd level, your experience with dangerous substances has given you resistance to poison damage and advantage on saving throws against becoming poisoned. In addition, you are proficient with the Poisoner's Kit.

Venomous Onslaught
At 3rd level, your blood is toxic and can be used to your advantage. As a bonus action, you can expend a number of hit points equal to one roll of your Hemocraft Die to gain one of the following benefits for 1 minute.
 * Your weapon Attacks deal an additional amount of poison damage equal to one roll of your Hemocraft Die.
 * You make a ranged Attack with a weapon that has the thrown property. You can draw the weapon as part of this Attack. You can use your bonus action on each of your turns to use this ability again.
 * When you hit a creature with a weapon Attack, you can use your Reaction to roll your Hemocraft Die a number of times no greater than your proficiency bonus. You lose hit points equal to the total result of the rolled dice, and the creature you hit takes poison damage equal to the same result. The creature must then succeed on a Constitution saving throw against your Hemocraft Save DC or become poisoned for 1 minute. Your Hemocraft DC gains a +1 bonus for each Hemocraft Die you rolled.

Debilitating Poison
At 7th level, your experiments with greater toxic substances has hardened your body even further. You gain proficiency with Constitution saving throws. In addition, when you poison a creature it's speed is reduced to 0 until the start of your next turn.

Brand of Impurity
At 11th level, your Brand of Castigation causes a creature to react especially badly to your poisons. If the branded creature is resistant or immune to poison damage, then any poison damage you deal to it becomes toxic damage instead. If the branded creature is not normally resistant or immune to poison damage, then the creature becomes vulnerable to poison damage.

Blood Curse of Venom
At 15th level, your poisoned can have unpleasant aftereffects. You gain the Blood Curse of Venom for your Blood Maledict feature. This doesn't count against the total number of blood curses you can know.

Blood Curse of Venom
Prerequisite: 15th level, Order of the Raven

As a bonus action, you can choose a poisoned creature that is within 30 feet of you. The creature makes a Constitution saving throw, taking 2d8 poison damage on a failed save. Whether the creature fails or succeeds on the saving throw, it is also blinded until it is no longer poisoned.
 * Amplify: On a failed saving throw, the creature takes 4d8 poison damage, or half as much on a successful save. The creature's movement is also halved until it is no longer poisoned.

Noxious Environment
At 18th level, you learn how to transform an environment into a toxic danger. As an Action, you can expend a number of hit points equal to three rolls of your Hemocraft Die, allowing you to cast the Cloudkill spell. You can see through your own Cloudkill spell and you do not need to concentrate on it.