Underground Arrival

(Rule)
Description: Universal Rule

The model may choose to start the game in Tunnel Reserve. Once per game, at the end of the owner's Movement Phase, the model's unit may be removed from the Battlefield and placed in the Tunnel Reserve. This cannot be done if the model is Engaged or Shaken. Unless there are 4 friendly Tunnel Markers on the Battlefield, you may mark a point on the Battlefield with a Tunnel Marker that the model touched when it was removed.