Homebrew Half-Troll Species Details

Tough, fierce, and hungry, half-trolls combine the best traits of both their parents' biology.
Ability Score Increase. Your Strength score increases by 1 and your Constitution score increases by 2.
Age. Half-trolls age more quickly than humans, reaching physical maturity at around 12 years old. Though their powerful metabolism grants them good health and staves off the physical decline of old age, it also reduces their overall lifespan, and they usually don't live as long as their human counterparts do, at 60 years old.
Alignment. Though their drives are weaker than those of their troll parents, half-trolls are still very passionate and individualistic. Most are chaotic, while almost none are lawful. Many half-trolls engage in destructive behavior, but many more have enough self-control to simply come off as uncouth.
Size. Half-trolls are smaller than full-blooded trolls, but are noticeably larger than most humanoids, standing from 6 to 8 feet tall, with as much as two extra feet of height gained from straightening out. Your size is Medium.
Speed. Your base walking speed is 30 feet.
Darkvision. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can't discern color in darkness, only shades of gray.
Iron Gut. You have advantage on Constitution saving throws against diseases, ingested substances such as raw meat or poison, and effects that rely on breathing or inhalation such as poison gas or the stinking cloudspell.
Keen Sense. You have advantage on Wisdom (Perception) checks that rely on smell.
Regeneration. You can tap into the trolls greatest ability to stave off damage, regeneration. As a reaction, when you take damage you can expand a Hit Die to reduce the damage by the amount rolled. You cannot reduce the damage if it is acid or fire damage. However, if you use this trait is again in the next round there is a chance of mutation. Roll a 1d6, on an even number you regeneration as normal, on an odd number you take necrotic damage equal to the amount you would have negated.
Thick Skin. Instead of adding your Dexterity modifier, half-troll's add their Constitution modifier when determining their Armor Class.
Voracious. You're almost always hungry, you must eat as much food and drink as a Large size creature, twice as much, each day to stave off starvation.
Languages:You can speak, read, and write Common and Giant.

Half-Troll Traits

The half-trolls racial traits are much like their parents race