Hi,
Since I'm slowly getting gear of >i463 in every slot, I did try a few Challenge mode dungeons.
Gear that is above 463 is scaled down, gear that is below that stays below.
Gold record for certain dungeons is 12-15 min (REALM, not mine), silver slightly above it.

I am so happy the heroic mode is nothing compared to challenge mode.
Trash kicks my ass, I wipe several times at TRASH, they hit so insane hard.
(scarlet 2x, mogushan).
Scarlet I did get a bit further, but the shieldblock/fire part kills me.
So far I have not been able to reach even a boss.

Is any of you able to clear a dungeon at challenge mode anf if so, how?