Your body is covered in plates made of fungus and bone that act as natural armor. Your fungal plates grant you increased protection.

The downside to these plates is that you are no longer able to wear armor on top.

The fungus that has invaded your body grants you many new changes, these being:

Immune system overdrive. Your body is no longer susceptible to poison and disease.

Enhanced metabolism: You no longer need to cook your food as you are now able to consume raw flesh and rotten food.

Numbed pain receptors: As your body is in constant pain and anguish you no longer feel as much pain from other sources granting you a bonus to your constitution. This change does have a downside as your constant pain has made you twitchy, aggressive and more primal leading to a decrease in intelligence.

As your knuckles are plated in bone composites your melee attacks deal more damage from the sheer blunt force.

You have proficiency in the athletics attribute

Your Strength score and your Constitution score increases by 2, while your intelligence decreases by 2

As you are constantly decomposing from the fungal symbiosis your lifespan varies based on your original race, but on average your lifespan will be 40% of your remaining lifespan after the infection.

Bloaters like tiefling have no specific alignment but tend to be perceived as evil and chaotic from their primal appearance.

Bloaters are somewhat larger, bulkier and more bloated than humans, and they range from 5 to over 6 feet tall. Your size is Medium.

Your base walking speed is 30 feet.

You have fungal plates covering your eyes and face. As a result, your eyes are no longer operational. To compensate for your loss of sight you have evolved a keen sense of echolocation. You have blindsight up to 40ft thanks to your echolocation.

You gain proficiency in the Intimidation skill.

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.

You can understand and speak Common and one other language from your previous race.