Improved Grab (Ex): If a vine attack hits, Lileep may start a grapple as a free action without provoking an attack of opportunity. If more than one vine hits, then every vine after the first grants a +2 bonus to grapple checks. Constrict (Ex): If it succeeds on a grapple check, Lileep may deal automatic vine damage for each vine attached. Acid Spray (Ex): Once per three rounds, Lileep may spray a 15' cone of acid. It deals 1d6 acid damage per HD (Reflex half DC 15), and those who fail their save take a -4 penalty to AC for two rounds.