If we list all the "advantages" a large creatures has over medium creatures without devising any racial traits, how many do we come up with? Are those traits alone more powerful or equal to a regular creature with four or five racial traits?
- Reach is only useful when you make the first attack, but those targets need to be adjacent to you for their own melee attacks. If anything, I can see reach only useful within the first round of combat and against any other ranged target (who would likely have enough sense to stand more than 2 squares back).
- Space means a large creature is easier to flank and allows for more combatants to surround him or her in battle. Large creatures must also deal with narrow hallways and other space matters, but it doesn't really grant a massive advantage in battle - they're just bigger targets.
- Weapon damage definitely comes into play, but that can simply be omitted to a degree. I've seen large creatures in the
MM dealing as much damage as medium counterparts of the same level, they just have a higher damage modifier tacked onto the end. Why not have large races follow the same tactic?
So if you make a large race, you have three racial traits right there (if you give them the Oversized weapon thing). Come up with one or two more to give the race a signature and I think it could work, though there's likely more tweaking to be sure. Reach could be converted to an encounter power and the race could be technically large but not a massive hulk like its big brothers.