Marksmanship Tome: Chimera Shot I

"You deal weapon damage, refreshing the current Sting on your target and triggering an effect: Serpent Sting - Instantly deals 40% of the damage done by your Serpent Sting. Viper Sting - Instantly restores mana to you equal to 60% of the total amount drained by your Viper Sting. Scorpid Sting - Attempts to Disarm the target for 10 sec. This effect cannot occur more than once per 1 minute."