Can an ability Rupture without dealing damage?

[SteelRook]

To make a long story shot, I'm trying to replace the "enemies take 33% more damage" aspect of Templar Amplify with the same "+2 damage from every attack received" effect from Demolitionist Rupture. In theory this would be simple as Rupture (technically, BulletShred) is just another aspect of the X2Effect_ApplyWeaponDamage class. However, attaching an object of that class causes the ability to deal the damage of the weapon it's attached to. The X2Effect_ApplyWeaponDamage object's "damage" statistic is only bonus damage on top of that. Setting it to 0 doesn't prevent the ability from dealing damage.

 

So, is there any way I can make Templar Amplify rupture without dealing damage?