The 100% conversion is almost certainly out. It might be a much lower percentage, making mana management still important. To balance its power, it could come poe2 trade with severe penalties, such as "Reduced Maximum Mana," "Reduced Mana Regeneration," or "Increased Damage Taken while gaining Rage." As a Vaal Greatsword, it might now heavily synergize with two-handed attack skills that have...