There's a Few Things That Could Make Mercury Worth Visiting:
• Bring the "Haunted Forest" Activity to Mercury Permanently
• Add Future and Past Mercury as Patrol Areas
• Allow Guardians to Access the Portal to the Infinite Forest
• Sparrow Accessability
• Infinite Forest Gates should lead to different times (Vault of Glass, Dreadnaught,etc)
Overall, these changes could make mercury a lot better than it is now!
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How about also changing the public event and/or at least change it so if randos melt the boss after I turn it heroic that it will remain heroic and not have to go through two boss shields to do so.