When LDoN was new some styles and some themes seemed tough(er). You'd get a couple of better-geared 65's in one and that would go noticeable different. At least that is my foggy recall.
With persona on Teek 6 characters that regularly play together could go 37-42 (using the chart above for the level range) via LDoN wearing raid gear (free trade server) and just keep swapping personas and the gear over. I think LDoN starts at 20 though which lowers the reward but really boosts the overpower factor. The sweet spot of gear-overpower vs. points rewards vs. just getting mission completes is the fine tuning point.
This thread is really old, but maybe partly still correct?
https://everquest.allakhazam.com/forum.html?forum=1&mid=1275575760230916006
It is on me and I get it. I played Agnarr for a year or so then left for other TLPs. It's kind of a mature shard in that most of the players have done everything and been everywhere. It's the same for everyone trying to make a go of it there. Slow experience and not a lot of lower level characters or underdeveloped ones. I mean if I just wanted easy I would get on live and hire some Mercs.
I also choose characters that aren't compatible with what I have to do. I like Druids, Magicians, Rangers. IIRC the only ~non-raid focus items for level 65ish is Diamond Prism of Companionship. This is only available from NRo camp. All NRo Adventures are indoor so it really sucks for splitting camps, no Harmony. I've got an Enchanter but they are only level 53 so a no go for joining. Ditto for subbing in another character like a Cleric, none above 52. 100% success on outdoor Adventures, less then 50% on indoor.
It's just slow with a few wipes. I pay the extra $3/month so as soon as my characters get a level, I lock them into 100% AAs so the deaths don't hurt so much.
I do a lot of cheesy play anyway to get by with only three characters. If I had it to do over I would probably just use my SOP of level 50 buffs and damage shields from my Druid on level 20 characters. About 1/3 of the way to the Focus item on one character. Still have two more Mages, two Beastlords, and a Necro to go. Plenty of higher level characters to buff them and lower level characters to reduce the Adventure difficulty. Juggling the 3 Mages is a bit of a pain but the end seems in sight.