One ability score of your choice increases by 1 and another increases by 2 or three ability scores of your choice increase by 1 each

You can see in dim light out to a radius of up to 60 ft. in shades of gray

When you remain motionless you are indistinguishable from regular fungi.

While motionless you gain advantage on Stealth checks, and investigation checks made against you have disadvantage.

As a shroom, you gain additional spells.

You learn the chill touch cantrip when you choose this race, and at 5th level you learn the Blight spell. You can use these spells once per long rest.

 While in direct sunlight, you have disadvantage on ability checks, attack rolls, and saving throws.

You are a plant

as an action, you create a 15-foot cloud of toxic spores that extends out from you. Each hostile creature in the area must succeed a DC 15 Constitution saving throw or be poisoned. While poisoned the target takes 1d8 poison damage at the start of its turns. A target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. You can use this feature once every long rest.

You can speak, read, and write common and one other language