Resilient: You have advantage on saving throws against poison, and you have resistance to poison damage.
Tardigrade Toughness: You have proficiency in the Survival skill.
Extreme Survivability: You can survive in extreme conditions for short periods. You can hold your breath for up to 1 hour, you can go without food and water for up to a week, and you have advantage on saving throws against extreme temperatures.
Microscopic Fortitude: When you are reduced to 0 hit points but not killed outright, you can drop to 1 hit point instead. You can't use this feature again until you finish a long rest.
Aquatic Adaptation: You can breathe both air and water, and you have a swimming speed of 25 feet.