Homebrew
Mystic Tortisfolk pull their resemblances from great sea turtles and carry strong ties to Aquillus the water crystal of life. These Tortisfolk carry strong magical ties and use it to protect and defend themselves from pray. Many use their abilities to heal and become healers of small towns and work in more medical ties to the Federation of Largos.
You can see in dim light within 60 feet of you as if it were bright light and in darkness as if it were dim light. You discern colors in that darkness only as shades of gray.
You can hold your breath for up to 4 hours at a time while doing strenuous activities. While resting, you can hold your breath up to 12 hours before needing to come up for air.
You have resistance to cold damage.
Your shell provides you a base AC of 17 (your Dexterity modifier doesn’t affect this number). You can’t wear light, medium, or heavy armor, but if you are using a shield, you can apply the shield’s bonus as normal.
Thanks to your mystical connection to nature, you gain proficiency with one of the following skills of your choice: Animal Handling, Medicine, Nature, Stealth, or Survival.
You can cast the Resistance cantrip. Starting at 3rd level, you can cast the Shield and Shield of Faith spell with this trait. Starting at 5th level, you can also cast the Healing Spirit spell with this trait, without requiring a material component. Once you cast Shield, Shield of Faith or Healing Spirit with this trait, you can’t cast that spell with it again until you finish a short or long rest. You can also cast either of those spells using any spell slots you have of the appropriate level.
Intelligence, Wisdom, or Charisma is your spellcasting ability for these spells when you cast them with this trait (choose when you select this race).