Yes. Each end of the weapon counts as a separate weapon for the purposes of two weapon fighting.
Actually, for TWF, it's treated as a one-handed and a light weapon. But that's just picking nits.
personally, for flavor, I wouldn't allow Rending with a double weapon, simple because the rend itself is slicing with both blades at the same time. (Think two swords crossed, and scissoring outwards with them). I can't see how that can be done with a single-hafted double weapon.
JJ clarified
That didn't clarify anything about the actual question asked. Though I think everyone agrees that by RAW, rend should work with double weapons, I think most would agree it doesn't make sense.
personally, for flavor, I wouldn't allow...
This was correctly answered by Mauril over two years ago. Why necro it now, in the rules forum, just to add a personal opinion that you admit you know is wrong by the rules? (definitely by RAW and arguably by "guy at the gym" fallacy RAI)
... I mean, your account, knock yourself out. Just seems less useful than making a new thread in the houserules forum.
Criticism of the current rules and requests for changes is also appropriate in this forum.
As for the necro, that was obviously a mistake. The result of a search engine that defaults to sorting 'by relevance', with absolutely no weighting of time.
... The result of a search engine that defaults to sorting 'by relevance', with absolutely no weighting of time.
Fair enough.
Hello gentlemen, I still do not get this part of two weapon rend: "you deal an additional 1d10 points of damage plus 1-1/2 times your Strength
modifier." does it mean it´s the whole str. bonus with the main hand and a half of your str. bonus with the off hand?... or is just 1 minus 1/2 times your str.? (wich will be obviously just 1/2 of your str. bonus)
...I really found it a bit confusing.
1-1/2 = 1.5 = one and a half They don't like using decimals.
oh I see! well thanks!