You take a tasty bite out of your foe, doing 1d4 damage plus your strength modifier. Delicious!

You can walk 20 ft and are a slightly more proficient climber being 25 ft

You are an animal, thusly cannot read, write, or speak, though you understand common speak. 

You are a possum, and are only around 1 feet in height and roughly 8 to 13 pounds. Your size is tiny. 

You are a nocturnal being, and are more than accustomed to seeing in the dark. You can see in any direction up to 60 feet, though cannot discern colors. 

You're animal instincts allow for cat like reflexes... at least in theory, your dexterity increase by 2! Additionally, you gain a plus 1 increase to your constitution. 

You play dead, temporarily dropping your Health points to 0 for one to three turns. Unless informed beforehand, your allies also perceive you as dead. 

Your stomach is used to munching on trash, and you are resistant to poisons because lord knows you've eaten worse!

You have pointy claws and can claw your enemies doing 1d4 damage plus your dexterity modifier. 

Hey, who gave you that?! You have a knife tied to your back, and it cannot be unequipped. That's one hell of a knot...

When you use the Dash action during your turn, you can make a melee attack with your horns* as a bonus action. 

*knife that's tied to your back