Ratz!

The Sewer Rat grew up in the harsh enviroments of New York sewers. Ew. 

Sewage Swimmer: Growing up swimming in disgusting water, you're a great swimming that can hold your breath from much longer than most. 

Dark Sewers: Having lived in low light conditions, you've adapted your senses to thrive in these conditions. 

Trashy Diet: You eat just about anything you can find, including rotten foods. 

Rat Poisons: With poisons changing so often you can't adapt to them, letting them severely hurt you more than normal. 

Righting Reflexes: Twisting and turning in the air you can land mostly unscathed. 

Night Scurrier: More active in the dead of night for safety from predators. 

Snack Size: Your small ratty body is the perfect snack for cats, foxes and wolves. 

Munchies: Your small raty body gets really hungry really fast. 

Fungal Rats grew along the giant mushrooms on Mushroom Islands. Fungal rats carry mushroom spores on their backs and sometimes take boats made of mushroom caps across the seas to spread the spores. 

Favorite Meal: Having grown up on an island with only mushrooms to eat, you have developed a taste only for fungus. 

Spore Spreader: The spores in your fur fall out sometimes when running or jumping, causing a mushroom to sprout if it's dark. 

Addicted: Going to long without eating a mushroom will cause will cause you to feel like your starving, even if you aren't hungery. 

Exotic Cuisine: Eating Crimson or Warped Fungus gives you fire resistance and either haste or speed however they don't give saturation. 

Predator Naivete: Due to there being no threats on your home island, you don't know how to defend yourself that great and have weaker claws. You also don't know how to use ranged weapons. 

Bergmann's Rule: Thanks to the lack of predators and the plentiful food, your body shrunk to optimize for the tropical climate. 

Hallucinogenic Fur: The spores in your fur are hallucinogenic to most so when you shake your fur creatures nearby may become nauseous. 

Natural Predators: The natural predators of rats hunt you as well, cats, foxes, and dogs will all attack you. 

Fungal Rat Poison: Unuse to poisons of the rest of the world, they are extremly potent against you. 

Rats who grew up eating normally toxic plants now weaponize their toxicity, personal space is advised. 

Toxic Glands: Releasing poisons through glands on your paws, when you activate your main ability hitting people with your power item will inflict a poison and Toxic Fur becomes stronger. 

Toxic Fur: Due to your toxic eating habits, when somethings gets to close to you they might become poisoned.

Washed Clean: Being in water or out in the rain will wash away your toxic oils. It will take a while for your Toxic Fur to return.

Root Eater: You're a herbivore that also eats roots.[Crouch when holding Hanging Roots, Rooted Dirt or Mangrove Roots] 

Maybe once a rat, now a grotesque beast of rotten flesh and sunken eyes. 

Sensitive Skin: Being out in the sun without a hat will scorch your rotten skin. 

Decaying Body: Due to the lack of life for poison to kill, your immune! However because your to far rotten, regeneration can't heal you.  

Cravings: You hunger for flesh and meat, and only those. Flesh is extra satiating however you hunger faster. 

Decaying Bite: Hitting something with your power star will inflict it with withering for a few seconds. 

Apart of the Horde: The Udead recognize you as one of them and won't attack unless provoked, however Villagers run and Golems attack on sight. 

Rats formed by the thoughts of Zeus, pests of Mount Olympus 

Cloud Body: Your body is 100% cloud, meaning your transparent and produce cloudy particles.

Static Shock: Using your main ability you shoot out a weak static shock. It's very weak but also very annoying. May paralyze the target.

Bluster: You can float! You MUST float. Touching the ground will strip your some of your health, unless you stand on (White) Wool, Snow, or Quartz.

Winds Grand Ode: While floating you have resistance, haste, and regeneration.

Blown Away: During thunderstorms you begin to float away, unless you're under a block, to join your brotheren in the great sky.

Kangaroo Rats, small mostly nocturnal rodents. They hop in a manner similar to the much larger Kangaroo.

Jumpy: You can perform higher jumps when springting and by using your primary ability, you can jump as high as a Kangaroo.

Legs of Might!: You take less fall damage due to your light weight body and strong legs, and landing on mobs deal damage to them.

Home Sweet Home: Your natural habitat is the savannah, being home gives your speed and haste.

Granivore: You thrive in the grassy fields of the savannah, full of grains and seeds. You can eat seed by crouching while holding seeds.

Exhaustion: Jumping everywhere tires your tiny body much faster than most.

Bottom of the Food Chain: Being at the bottom of the food chain, even in the savannah, common rat predators hunt you but so do armadillos

Cursed many generations ago or maybe attacked by an cursed rat, this lycanthropy curse is now yours. 

Rat Shifter: Using your primary, you can shift into a rat, able to squeeze between smaller and smaller crevices but as this form a rats natural predators seem to hunt.

Cursed Moon: Being under the moon brings something cursed out, forcably turning you into your rat from... but something isn't right.

Cursed Bloodline: Villagers refuse to trade with you and sick their golems after you, but Witches seem kind enough to take you in.

Cursed Bite: Hitting someone with your primary power will inflict them with a curse, being even stronger at night or in your rat form.

A very hairy rat, mother was a sheep and father a rat. Don't question it.

Very Hairy: Soo hairy indeed, you can't even wear armor with all this fluff. But it's very warm and protecting.

Haircut: You can give yourself a nice haircut by crouching and using shears! This clears your fluff and give you some string and wool.

Weaver: Your mother sheep taught you how to weave, you can crouch while holding 3 string to make 1 wool block.

Soggy: Getting all wet really dampens your stride, slowing you down until you're all dried out. While wet your slower and more fatigued.

Bite Sized: You're still a rat, meanig your small and hunted by your natural predators.

A rat exposed to intense amounts of radiation, it's DNA now incredibly damaged. 

Explode: Using your primary, you explode. A powerful explosion emerged from your body and leaves the immediant area nuclear and wounding you immensely.

Radioactive: Due to your body emitting so much radiation, anything near you risks death. Can be contained via dense metal armors.

Radiation Sickness: The long exposure of radiation has weakned your body, maing your bones and body weaker and slower. You have 4 less hearts and sprint slower.

Combustible: Due to radiation making your body so unstable, your body reacts explosively to fire.