- A Sail is a Module that is found on most ships. The sail protects the top and back of the ship, and any weapons hidden behind it. It has limited health, and once destroyed, leaves the ship vulnerable. Most sails are weak to Arrows.
- Main article: Weakness
- A Weakness is an attribute for Hulls and Sails.
- Hulls will receive 50% additional damage from Characters and Weapons that have a certain Element of strength.
- All Sails will receive 50% additional damage from Characters and Weapons that have the Arrow strength.