Nobody uses vengeance in the skill tab. So what if vengeance damage and attack rating is added with skills like zeal sacrifice charge and normal attack damage. Vengeance on its own is a terrible skill on its own. But if you added it with zeal. Each attack has an extra boost of elemental damage and attack rating.
Vengeance combined with zeal would be OP af.
Not as strong as a Mosaic-sin, but still he would melt everything it touches.
Vengeance is just bad, because it’s a single target ability