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The Laser Cannon was obtainable in Season 13: "Become a Supervillain" by reaching level 9.
Laser Cannon stabilized a while ago. While it still performs very well, excellent demand would be an overstatement, as it's no longer one of the most sought-after items in trading. The same goes for Drip.
Supply is widely distributed — no single holder owns enough to register as a hoarder.