Ship Sage

Your blend your knowledge of the natural and the magical into true nautical expertise.
Prerequisite: Proficiency in Nature or Survival, the ability to cast at least one spell.
• You do not have to make concentration checks as a result of an unsteady ship, even in a storm.
• You gain advantage on checks to identify aquatic creatures.
• You can spend one week familiarizing yourself with a specific ship, living and working aboard it. Once you have done so, spells that you cast that deal hit point damage do not harm the ship. This benefit ends if you spend more than one month away from your ship or if you familiarize yourself with another ship.