So as you can see in the image, when the Nechrocasm is maxed out it's box isn't outlined in yellow like all other weapons. Also, it still has an EXP bar, which disappears on all other weapons once you fully max them out. Why do you think this is? I have some ideas: 1) Because players don't upgrade this weapon, you upgrade the Eidelon's Ally and the Nechrocasm is already fully upgraded. 2) Because there is a hidden perk Bungie hasn't released yet. 3) Bungie screwed up. What do you think? Discuss!