Dysfunctional Rules IV- It's like a sandwich made of RAW failure!

[Darrin]

I don't know if this has been mentioned yet, but there's an isssue with determining the offhand damage for double weapons.

The rules are quite clear that when wielding a double weapon, you can use the TWF rules for an extra attack. For the purposes of calculating attack bonuses, you treat the primary end of the weapon as a one-handed weapon, and the other offhand end is a light weapon. But the rules are very explicit that this is only for calculating attack penalties.

For the purposes of damage, you are wielding a double weapon with both hands. According to PHB p. 134, you get x1.5 Str bonus on your primary attack. You are also wielding the other offhand end of the weapon with both hands. But there's a contradiction in the rules:

"Off-Hand Weapon: When you deal damage with a weapon in your off hand, you add only 1/2 your Strength bonus.
Wielding a Weapon Two-Handed: When you deal damage with a weapon that you are wielding two-handed, you add 1-1/2 times your Strength bonus."

Your non-primary end is both a two-handed attack and an offhand attack... so which damage bonus do you get, x1.5 Str or x0.5 Str?