The description of stomp states that it is an extra attack that has the ASL special rule. That all makes sense. What I was wondering however was if a stomp also has any other abilities that belong to the model like killing blow, poisoned attacks etc or even ASF that would cancel out the ASL. Reading the description it does not seem like it would benefit from extra rules as it states that it seems to define its parameters in the desciption of it and makes no mention of gaining any bonuses other attacks may have. Still wanted to make sure though.