[quote=@tex]
[@Archmage MC]
For regeneration fruit, there was marco's technically, and it was nullfied temporarily by seastone, but that's not quite the same as haki.f

For Haki? Well, we've confirmation that it ignore's luffy's rubberyness (which isn't armor, or a shield of any kind, mind you) and harms him regardless, while not even stretching him iirc. I guess it could be argued that haki directly harms the soul, or spirit, which makes a lot of sense, but even in this case, I doubt having your spirit [i]cut in half[/i] would be uh... Lethal.

I'll let [@Jenso] say his part. Seeing how toonforce doesn't have that many real offensive options, I don't think it'd be too much of an issue for of its abilities to be allowed.
[/quote]

True. And even then he just regenerated afterwords when he wasn't affected by it. Course his fruit also seemed to have built in pain killers. xD

Yeah, but Luffy's rubberyness is a 'defense' or a 'resistance' instead of 'hp regen' if that makes sense (And even then Luffy has been hurt by physical blunt trauma from non haki users, so its very... selective on what it works on). And its been stated that Haki basically lets you hit the 'true' body, as if they didn't have any defense or resistance when it comes to devil fruit users anyway, which can be interpolated 6 ways to sunday considering the creator himself doesn't really know what to do it with it other than. "You can hit Logias now."