Lightning Shackles

A net of crackling arcs bursts into existence and wraps around your foe, binding them with raw electrical force. The target must succeed on a Normal END save or become immobilized and take 8 Electric damage per phase for 3 phases, or until the arc is finished. On a successful save, the target is not immobilized but takes 4 Electric damage and the spell ends. An immobilized target may reattempt the saving throw at the end of each of their turns. A creature adjacent to the target may spend a full-round action to ground the arc and end the effect. If the target is wearing metal armor the damage is doubled.