Wall of Mirrors

Use this Stratagem at the end of your Movement
phase. Select one stealth battlesuits unit that is
wholly within 9" of any field edge; remove that
unit from the field.
In your next Reinforcements step, you can set
that unit back up on the field anywhere that is
wholly within 9" of any edge and more than 9"
away from any enemy models. If the battle ends
and that unit is not on the field, it is destroyed.