Large creatures don't automatically add an extra die of damage. (This is why the Trollish Stature feat increases their claw attack to 2d6.) They are capable of wielding weapons that are larger, and therefore do an extra die of damage. Therefore, a large PC would need to also acquire large-size weapons.
I'd keep it strictly limited to what the core rules say for Large creatures:
There would be other issues, such as needing custom equipment to match their size, but those are ultimately more RP things.
- 10x10 foot space.
- Can only squeeze through Medium or larger spaces.
- Capable of wielding Large-sized weapons (which do double the dice, but are treated as a different weapon from their smaller counterpart).
- Require Huge or larger mounts.
- Powerful Build traits.
Definitely worth a sidebar, though, agreed.
If I where going to allow large PCs I would houserule 3rd edition/Pathfinder large weapon rules. Which means a large greatsword is 2d8 rather than 4d6, which is totally broken for PCs. I agree with @Flamestrike, obtaining a large weapon is trivial.
I would apply the same rules to Enlage/Reduce and Rune Knight size changing.
Speaking of Large Races, and it's polar opposite, Tiny Races...If that's the way they're going in 2024 edition, that would not only be useful here, but might make it easier to have Large PCs in the official rules...
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