Yeah, that worked better than it thought it would. Spider takes 6 points of damage.
Having determined that, even in their reduced state, they are still more than capable of attacking the dude in armour, they try their luck on Nanashi.
Bear 1: Body 4: Unarmed Combat 4: 4d6 : 4, 3, 6, 3, total 16
Bear 2: Body 4: Unarmed Combat 4: 4d6 : 3, 1, 4, 4, total 12
Bear 3: Body 4: Unarmed Combat 4: 4d6 : 1, 4, 5, 5, total 15