Prized for it's medicinal quality this particular plant has been found to have numerous uses.
The Indigus Tinctoria must be harvested in the first year of it's growth, it is then formed into balls and dried out, when the balls become solid they are ready to be formed into a paint substance. The balls are dissolved in oil and potash to form a paste, this takes on a blue tinge thanks to the chemicals in the Indigus itself.
The Indigus is then a blue paint which is stored in pots, it is now called "Woad", some of the Verstite people would daub their warriors in swirling patterns of it before battle, initially Legion
troops thought this was for a psychological reason intended to scare the Legionaries. The Legion troops are not so easily scared. After some time however it was noticed that those who survived the battles experienced better healing where the Woad paint had touched.
The Legions War Priests investigated the blue paint and noticed that it did infact have a medicinal property and seemed to encourage wounds to close quite quickly. Now to this day Medicus carry jars of Woad with them at all times to rub on wounds caused on the battlefield, it seems to keep infection at bay and help them close up. Like all things the Legion has come up with an affectionate nickname for people exposed to this chemical, they are called "the Painted Men" due to it's ability to stain quite dramatically.
Behind the GMs screen...
For game purposes, the woad paint upon first application counts as a Cure Wounds at 1st level with a +2 spellcasting modifier.
Casting Time 1 action
Components V, S
A creature you touch regains a number of hit points equal to 1d8 + your spellcasting ability modifier. This spell has no effect on undead or constructs.
At higher levels: When you cast this spell using a spell slot of 2nd level or higher, the healing increases by 1d8 for each slot level above 1st. 2nd level 2d8 , 3rd level 3d8 , 4th level 4d8 , 5th level 5d8 , 6th level 6d8 , 7th level 7d8 , 8th level 8d8 , 9th level 9d8 .
Class(es): Bard, Cleric, Druid, Paladin, Ranger