So Second Coil has been destroyed

[Roris]

All this could have been avoided if they had implemented different difficulties right from the start, I think WoW does something similar though I don't really know the specifics, each with their own lockout.

Easy/Story difficulty: echo +20-30% and current nerfs, no drops whatsoever, possibly exclude the last turn from this tier.
Normal: no echo but current nerfs, only one chest per turn, possibly no gear enhancing items whatsoever.
Hard: no echo, same mechanics as before the nerfs, same amount of drops as we have now.
Savage: no echo, same mechanics as current Savage, possibly 3 chests per turn and/or one extra gear enhancing item.

Maybe Heavensward could do something like this, and also maybe have more than one relevant piece of endgame content.

[Ophie-Mio]

I like Rori's idea!

[Kerrigen]

All this could have been avoided if they had implemented different difficulties right from the start, I think WoW does something similar though I don't really know the specifics, each with their own lockout.

Easy/Story difficulty: echo +20-30% and current nerfs, no drops whatsoever, possibly exclude the last turn from this tier.
Normal: no echo but current nerfs, only one chest per turn, possibly no gear enhancing items whatsoever.
Hard: no echo, same mechanics as before the nerfs, same amount of drops as we have now.
Savage: no echo, same mechanics as current Savage, possibly 3 chests per turn and/or one extra gear enhancing item.

Maybe Heavensward could do something like this, and also maybe have more than one relevant piece of endgame content.

This is how it should be done. I hope the devs read this.