This homebrew feat is to unlock lore native custom races on RPDND: Paths of the Past (a minecraft dungeons & dragons roleplay server)

A creed of aquatic shellfish and sea life that grows in diversity every day, all in the name of unity.
Native Variant of TORTLE

Native Traits:

• Deep Swimmer. You can breathe in both air and water, and gain a swimming speed equal to your walking speed. Additionally, your body can tolerate intense pressure, such as the deep sea.
• Shellfolk Senses. While fully submerged in water, you have 20ft of blind sight and advantage on all Perception Checks. Your target does not need to be in the same water for these senses to function.