Zener Diode

Zener Diode may be placed on any Roaming Red Run card currently roaming which prevents the card from changing direction when it encounters a Barrier. If it should encounter a Barrier, then Zener Diode and the Roaming Red Run card will remain dormant until the Barrier is either moved, or eliminated (discarded). Zener Diode does not prevent a Roaming Red Run from being destroyed by a Neutronium Barrier.