Some PC were grappled by a carnivourus blob (bestiary 2). The blob stretched out pseudopodia to grapple more than one PC without being considered in the grapple condition (-20 penalty to fight). But even if it had 4 PC grappled without had the grapple condition, could constrict them all together and attack the same turn? Or, or attacked, or constrict? And those who could constrict?
