Reed snakes were small and very thin. Their dull green scales allowed them to blend in with grass.
A bite from a reed snake released a deadly toxin into the bloodstream of its prey. Due to their size, they only attacked sleeping prey, including humanoids. The bite from a reed snake was usually fatal and caused great pain in the victim. A neutralize poison spell neutralized the effects of the venom.
Reed snakes hunted during the night. They spent the daytime hours hiding and sleeping, hiding within long grasses or reeds.