Poison Cost Level = Modifier Number + 2 Poison requires that you first cause damage to your target. If you do at least 1 point of damage to your target, your target becomes Poisoned for a Duration equal to the MN of this Modifier (as per the AR Chart).
The target will feel weak as his body spends Energy fighting off the Poison. For each level that the Poison exceeds the Durability of the target, the target takes 1 red stone of potential damage. To offset the damage, the target must spend a number of Energy per turn equal to the number of White stones of damage the poison causes.
Ie: Scorpion stings Cyclops with a level 7 poison. Cyclops has a Durability of 3. So, Cyclops would take 4 Red stones of potential damage per turn (Poison 7 - 3 Durability). That's equal to 2 White stones (1 White stone for every 1 to 3 red stones). Thus Cyclops has to spend 2 Energy per turn fighting off the infection, for a whole week.
This poison can be negated by a Medical Check with a Resistance equal to the MN x 10.