
shadowkras |

The rules for Spells in Naval Combat mention that several spells dont move with the ship unless they are anchored to the ship.
Quote:
Forcecage, Resilient Sphere, Wall of Force: The effects of these spells move with a ship if they are anchored to it. Otherwise, they do not move with a ship, and a ship running into them makes a ramming maneuver.Prismatic Sphere, Prismatic Spray, Prismatic Wall: These spells do not start fires on a ship unless the ship passes through the spell effect and rolls a natural 1 on its saving throw against fire damage. A prismatic sphere or prismatic wall moves with a ship if it is anchored to the ship. Otherwise, it does not move with a ship.
Wind Wall: The effects of this spell move with a ship if it is anchored to the ship.
How do you anchor a spell to the ship? Where are the rules explaining how that works? How would Wind Wall become anchored? How would an instantaneous Prismatic Spray affect a passing ship?