So thought I’d check to make sure everyone knows how to trigger the heroic public events? If you don’t just ask away, they are a great way to increase your chances of getting exotics
On mercury, when you fly over to the outer islands, destroy the orange-bar enemy and dunk the spark. Before going back, look away from the centre where the Minotaur spawns and you’ll see a diamond/prism floating in the sky. Shoot it and it’ll spawn more and platforms to follow. Shoot all 5-6 and activate the plate at the top to trigger heroic. You only have to do it on one side