Snikch cannot be seen (and therefore charged, shot at, or targeted specifically by spells) unless the attacking unit first rolls a D6 result of 4+. If the test is failed, the unit may still announce a charge, shooting attack or spellcasting elsewhere. The presence of an undetected Snikch won't prevent enemy units marching, charging or shooting other targets - just move Snikch out of the way with the minimum amount of movement should he be in the path of an enemy move. If Snikch is in a unit or engaged in close combat, the cloak has no effect.