Shock

If two or more shocker lizards are within 20 feet of each other, they can work together to create a lethal shock once every 1d4 rounds. This effect has a radius of 20 feet, centered on any one of the contributing lizards. All creatures within that radius take 2d8 points of lethal electricity damage for each lizard contributing to the shock, up to a maximum of 12d8. A Reflex save (DC 10 + the number of lizards contributing) halves the damage.