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Omg, I just got out of Damenheim. There was no way to complete that dungeon with my levels. I boosted all my stats to try to get to the one room that I can open (needs 95 smithing, I got 84,) so I boosted my stats with a artisan potion, 1 level off.
I try to make the artisan strong potion, need 95 farming to plant the seed. (farm lvl 70?)

I found a summon alter, it was blocked off by 2 small pillars, but enough to where you cant use it.

I rage quitted that dungeon after a hour! A hour wasted trying to complete the dungeon being clever.

No, the dungeon is more resillaint (and glichy) than anything
Each time I tried to activated a magic spell, it wouldn't work.

God, this was frustrating! I hate dungeoneering for a reason, it sucks! ((now I gotta get my clan together for a dung crawl v_v I really hate dungeoneering))

That's strange; I've never run into a glitch whilst Dungeoneering.

With that said, I don't believe every dungeon is supposed to be completable with your levels. Have you tried harvesting energies to make a portent of passage?

Also, try Dungeoneering with a team; it helps speed up dungeons quite a bit.

I tend to get large dungeons done in 10-12 minutes.

Yup, best XP comes from 5-man team 5:5 Large Dungeons. Preferably try to find some friends who have high skill levels (to minimize time spent on skill doors). Try looking in the forums. World 77 isn't too bad but people tend to be very inexperienced.

At 10-12 minutes an average large dungeon I tend to get about 500k XP per hour if I focus and have a good team.

Too bad I tend to get distracted with other things while I dung.

It's fun though! You should try to set a time record for yourself. My fastest large was in 8 minutes and 12 seconds, still haven't beat that time.