Added Venomous trait

[lozanoje]

The Serpent & the sands adds a new trait for weapons;

Venomous Weapons
An Ophidian weapon with the Venomous trait which rolls one or more effects on damage will inflict the Poisoned truth on the target (or the Poisoned: Ophidian Toxins truth p.79). They will suffer Persistent 1 damage with a Piercing 2 effect every turn until cured. Due to the technology involved in their creation, Ophidian Venomous Weapons have a distinctive red flash when they fire, making them easy to spot and revealing the shooter’s location.

I've added it as a new quality, feel free to change it.