Hi Bungie team, There are several mods from the new artifact that can not be applied to regular armor, but only to Artifice armor, which many players do not even own. One example is the “Low Entropy Superconductor” mod. There are others though. Also, I noticed that the “Unstoppable Grenade Launcher” mod was not working for me properly. I aimed, and waiting for my launcher to glow (a heavy legendary one), but upon firing, it did not stun the Champion. Thanks for your attention to this. So far, so fun, but frustrating right now.😉