This short sword called "Venomous Short Sword" says it should deal 2 poison damage each turn, but when I use it it deals only 1 poison damage, (Its really hard to get a screenshot of the 1 poison damage per turn, but I did it against altar units without poison resistance at all, and tried in 3 different combats against several units now).

Edit: Forgot to put it on the support forum 
Sincerely
~ Kongdej