Version 3! I feel like I'm closing in on a final version, but critiques still welcome.
Troll Traits
Ability Score Increase. Your Constitution score increases by 2, and your Strength score increases by 1. [If you are using post-Tasha's guidelines, assign the +2 and +1 wherever you wish.]
Size. 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.
Keen Senses. You have proficiency in the Perception skill.
Claws. Your claws are natural weapons, which you can use to make unarmed strikes. If you hit with your claws, you deal slashing damage equal to 1d6 + your Strength modifier.
Natural Armor. When you aren't wearing armor, your AC is 13 + your Dexterity modifier. You can use your natural armor to determine your AC if the armor you wear would leave you with a lower AC. A shield's benefits apply as normal while you use your natural armor.
Powerful Build. You count as one size larger when determining your carrying capacity and the weight you can push, drag, or lift.
Regeneration. As an action, you can spend one Hit Die to heal yourself. Roll the die, add your Constitution modifier, and regain a number of hit points equal to the total (minimum of 1). If you take acid or fire damage, this trait doesn't function until you finish a short or long rest.
Troll Feats
Trollish Fortitude
Prerequisite: Troll
- Increase your Strength or Constitution score by 1, to a maximum of 20.
- You can now use your Regeneration trait whenever you take the Dodge action in combat. If you take acid or fire damage, this trait now functions again after 10 minutes have passed.
- You gain the Bite trait. Your fanged maw is a natural weapon, which you can use to make unarmed strikes. If you hit with your bite, you deal piercing damage equal to 1d6 + your Strength modifier.
Trollish Stature
Prerequisite: 8th Level, Troll
- Increase your Strength or Constitution score by 1, to a maximum of 20.
- When you gain this feat, roll 2d4. You grow a number of feet in height equal to the roll.
- Your Powerful Build trait is replaced by the Large Stature trait. Your size is Large. (See the sidebar on Large Player Characters.)
- Increase the damage inflicted by your Claws trait to 2d6 + your Strength modifier.
Greater Trollish Fortitude
Prerequisite: 8th Level, Troll, Trollish Fortitude feat
- Increase your Strength or Constitution score by 1, to a maximum of 20.
- You can now use your Regeneration trait as a bonus action. If you take acid or fire damage, this trait now functions again after a minute has passed.
Superior Trollish Fortitude
Prerequisite: 12th Level, Troll, Greater Trollish Fortitude feat
- Increase your Strength or Constitution score by 1, to a maximum of 20.
- You can now use your Regeneration trait as a reaction. Your Regeneration trait additionally allows you to restore severed body parts. Your severed body members (fingers, legs, and so on) are restored after a short or long rest. If you have the severed part and hold it to the stump, your Regeneration instantaneously causes the limb to knit to the stump.
Supreme Trollish Fortitude
Prerequisite: 16th Level, Troll, Superior Trollish Fortitude feat
- Increase your Strength or Constitution score by 1, to a maximum of 20.
- You can now use your Regeneration trait once at the start of your turn without using an action. If you take acid or fire damage, this trait doesn't function at the beginning of your next turn, but now functions again at the beginning of the following turn. If you start your turn with 0 hit points and can't use your Regeneration trait, you must succeed on three death saving throws before your Regeneration trait can function again.
Large Player Characters
Player characters in the core rules are assumed to be Medium or Small size. Large player characters have a number of benefits and drawbacks to consider, as follows:
- Large PCs have a space of 10 by 10 feet. Large PCs can squeeze through a space large enough for a Medium creature, but not that of a Small creature. Large PCs can move through the space of a Small or Tiny creature as difficult terrain, but can no longer move through the space of Huge creatures.
- The listed ranges and areas for class features, spells, and so on are not adjusted to match a Large PC's size or space.
- Large PCs can only ride Huge or larger mounts.
- Large PCs have twice the carrying capacity of a Medium creature with the same Strength, and can push, lift, or drag twice the weight.
- Large PCs can wield weapons sized for Large creatures without disadvantage. Large weapons do twice as many dice of damage as their normal-sized counterparts. For example, a Large mace deals 2d6 bludgeoning damage. However, a character's proficiency with the normal-sized version of a weapon does not automatically grant them proficiency with its Large counterpart, and they must acquire this proficiency through other means (such as the Weapon Master feat).
- The equipment in the Player's Handbook is sized for Medium and Small creatures; whether or not Large PCs can buy weapons, armor, or similar equipment for their size at conventional markets is up to the DM's discretion. If the DM decides against this, a Large PC might either find someone willing to customize equipment for their size, or be able to seek out markets that cater to Large creatures (such as giants' settlements). The price for such equipment will also be proportionally higher: see the Equipment Sizes variant on page 144 of the Player's Handbook for guidelines.
Changes from version 2
- Trollish Fortitude: Now includes the 10 minute reset from the v1 base troll, as a mild upgrade. (Strongly considered but rejected making the Bite a bonus action, for various reasons.)
- Trollish Stature: Added a variation of the Rune Knight's 10th level ribbon, because why not. (Considered 12d4 inches but that's a lot of rolling.)
- Superior Trollish Fortitude: Removed the 14 natural AC, added reaction regeneration. (Did not carry over the restriction on death saves, as I determined it's unnecessary until the next feat.)
- Supreme Trollish Fortitude: Regeneration no longer requires an action to use, but still only happens once per turn.
- Added to and reformatted parts of Large Player Characters sidebar.