Spider's Fangs

Weapons with [LETHAL HITS] in their profile are known as Lethal Hits weapons. Each time an attack is made with such a weapon, a Critical Hit automatically wounds the target.

Weapons with [EXTRA ATTACKS] in their profile are known as Extra Attacks weapons. Each time the bearer of one or more Extra Attacks weapons fights, it makes attacks with each of the Extra Attacks melee weapons it is equipped with and it makes attacks with one of the melee weapons it is equipped with that does not have the [EXTRA ATTACKS] ability (if any). The number of attacks made with an Extra Attacks weapon cannot be modified by other rules, unless that weapon’s name is explicitly specified in that rule.