Ion Shield

When a Knight is deployed, and subsequently at the start of each of the opposing side's Shooting phases, the Knight's controlling player must declare which facing each Knight's ion shield is covering. The choices are: front, left side, right side or rear.
The Knight has a 4+ invulnerable save against all hits on that facing until the start of the opposing side's next Shooting phase. Ion shields are repositioned before any attacks are carried out in the Shooting phase and may not be used to make saving throws against close combat attacks.