Swamp strider (Lizardfolk or Locathah)

You can shrug off the negative effects of living in tainted, unclean waters and gain the following benefits:

• You gain resistance to poison and acid.
• You have an advantage on rolls against parasites and diseases.
• You can eat rotten food or drink tainted water from a swamp, bog, fen, mire, quag, marsh, or mere without getting sick, unless the taint is magical in nature.
• Leeches, lamprey, and candiru do not bother you.
• If you have proficiency in animal handling, it counts as expertise when interacting with swamp-dwelling creatures such as crocodiles, frogs, giant snakes, capybaras, etc.
• You can dash as a bonus action in water, and you are not hindered while walking in water.