Cripple shot

so basically.. when you using poisonshot or vamp shot you get a buff... you then use cripple shot when you have 1 of the 2 buffs and it enhances its effect.. e.g. vamp makes you hit twice and "vamp" twice.. where as poison makes you do 3x3 aoe poison

you use either vamp or poison shot on a target to get a buff, then use cripple shot to trigger its bonus