Homebrew
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.
Aquatic animals have an extraordinary affinity with your people. You can communicate with your mind to any Beast that has a swimming speed.
If you fail to immerse yourself in water for at least 8 hours during a day, you suffer one level of exhaustion at the end of that day. You can only recover from this exhaustion through magic or by immersing yourself in water for at least 8 hours.
You count as one size larger when determining your carrying capacity and the weight you can push, drag, or lift.
Your large mouth is filled with dagger-like teeth and is a natural weapon which you can use to make bite attacks. If you hit with it, you deal piercing damage equal to 1d10 + your Strength modifier. In addition, a target you successfully hit with your bite attack is grappled. If a creature is still grappled at the start of your next turn, you automatically deal your bite damage to it.
You have advantage on melee attack rolls against any creature that doesn’t have all its hit points.
You have advantage on Perception checks that rely on smell. In addition, you can smell blood within 180 feet when out of water. While in water, this distance increases to 1 mile. You can track bleeding creatures within this range by scent.