Everything about this new 280+ Epic Dungeon is so painfully awful to play that I am convinced not a single person at Nexon played this a single time...

This is bad-bad-bad in design and quite literally zero fun and 100% pain and torture to do...
At least the first two Epic Dungeons have something redeemable about them, even if it is a few aspects, but this new one actually has nothing redeemable about it!

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At least for GMS, delete all of the Epic Dungeons and add the rewards to the Weekly Erda, on top of what Weekly Erda already gives.

With this, Weekly Erda is changed, like how it should have always been, to per character and unlimited times it can be done per account for all of the rewards based instead of per account based.
> This means, all of the Sol Erda and Sol Erda Fragments earned directly from Weekly Erda would be Untradable and Non-Transferable.

How I would do the combination effect is this (This is for Heroic Worlds.):
> Level 260-269 characters gain 130 Sol Erda Fragments, 10 Sol Erda, and what was High Mountain's EXP.
> Level 270-279 characters gain 145 Sol Erda Fragments, 10.5 Sol Erda, and what was Angler Company EXP.
> Level 280+ characters gain 160 Sol Erda Fragments, 11 Sol Erda, and what was Nightmare Paradise EXP.

> For the future, when a new Epic Dungeon is formed, instead of getting the Epic Dungeon, characters at the minimum level and higher of what the Epic Dungeon would have been at we instead further upgrade Weekly Erda's rewards to what the Epic Dungeon would have given us + the base Weekly Erda rewards.

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Players will enjoy the game so much more with this change and with multi-characters being able to do Weekly Erda will allow players with multi-mains to actually progress their characters instead of the current situation of it being impossible mode to do so.