This idea is in the same spirit as the pile of hive corpses in the original loot cave. It's kind of meant to be a joke, but I would find it hilarious as an actual in game item. If it's not impossible, I'd like to see an exotic Primary called RNG in the game. Here's how it would work: Every time that you cycled through the weapons you have equipped in game (primary, secondary, heavy) RNG would have a randomized chance of being either an auto-rifle, a pulse rifle, or a scout rifle. Furthermore, every time you fired a barrage, burst, or shot from it, it would have a randomized element (arc, solar, void, kinetic). The lore is simply that golden age cryptarchs conducted an experiment in the hopes of further condensing engrams for greater storage capacity. They encoded three rifles, and placed them in the machine, and the result achieved was very unexpected. The three engrams permanently combined into one unstable engram. It was hot to the touch, volatile, and considered extremely dangerous. As time went on, it was safely tucked away and forgotten, until one day it was unearthed by a fireteam somewhere on earth. They took it to a young upstart cryptarch, fresh out of the academy (poor Rahool). Nearly setting fire to the very room he was in, Rahool decrypts the engram, resulting in a quantum mass rifle. It would remain the same as long as you were looking at it, but as soon as you looked away and then returned your gaze to the weapon, there it would lie, a different gun than before. (This concept stems from the Heisenberg uncertainty principle, and Schrodinger's cat). Because you could never keep an eye on the rounds in the magazine, they too would change in your very hands. The weapon was still warm to the touch, but far more stable than it had been as an engram. Before the cryptarch could insist the weapon be taken for study, those rascally guardians had spirited it away, off to randomly fight the darkness in random parts of the galaxy! I hope this takes off, because if this gun concept actually made it's way into Destiny, I would love it to bits! What do you guys think?