Magnetostar never got a chance to shoot off her first volley. The plan was changing. Of course that assumed there even was a plan in the first place. 

Dash was here, so were Mr Incredible and Elastogirl, but where was Vi? Perhaps she could use a forcefield to stop it from rolling, Mako's own powers could help with this too, Karearea could get something in the seam to grow and open the gap allowing Mr Incredible to escape or counter attack.

At the last possible moment Mako dodged out of the way. "Dash!" She called out, trying to get his attention. She would need his speed to get the plan to the others. If they agreed then she would move into position behind the Omnidroid and begin focusing met magnetic powers on stopping the droid from continuing to roll.