The arachnarok can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The arachnarok regains spent legendary actions at the start of its turn. Attack. The arachnarok makes one leg attack. Skitter. The arachnarok moves up to its speed without provoking opportunity attacks . Chomp (Costs 2 Actions). The arachnarok makes one bite attack.