While playing The Quiet Year as set up, a race of platypus-like people were encountered by the seaside settlers. This homebrew race is intended for the players in the following 5e game as a new race option.
Ability Scores. You may increase one ability score by +2, and different score by +1. Alternatively, you may increase three different ability scores by +1.
Speed. Your speed is 30ft.
Size. Rhynkos stand between 3 and 4 feet tall. Your size is Small.
Darkvision. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were in dim light. You discern colors in that darkness only as shades of gray.
Hold Breath. You can hold your breath for up to 15 minutes at a time.
Electrolocation. You have blindsight for 10ft while underwater.
Venomous Spurs. As a bonus action, you can apply a venom to a piercing or slashing weapon that lasts for one minute. When a creature is hit by the weapon, they must succeed on a DC 12 Constitution saving throw, or take 1d4 poison damage. You may use this trait a number of times equal to your proficiency bonus. You regain all spent uses when you finish a long rest. This does not require concentration. [This is intended to last through the minute, like Elemental Weapon, and not disappear after the first hit, like Branding Smite. I'm not sure is that is clearly communicated.]
Platypus Resilience. You have advantage on saving throws against poison, and you have resistance against poison damage.
I'm worried I pulled too many traits into one race, however I know a lot of them are very situational. The campaign will take place a lot on the ocean, so I'm sure many of them will be used.