If you are on the Stromm server, please don't read this [grins]
http://eqbeastiary.allakhazam.com/search.shtml?id=19263 is the mob to hunt for runes. Drop rate on runes in general seems to be around 40% of the time, with Greater runes being rare (have gotten 2 in around 100 kills). SK pulls with snare, may get 2 mobs when first breaking camp, if so, FD to split. After that, he tanks and sicks pet on mob from behind, I slow with Discord first, send in Speedbump, HOT on SK, Panther all 3 of them, HOT SK again, DOT mob with a couple, and then keep HOT on SK for heals. Sometimes having to throw heal on him if mob quads for a spike. I use HOT potions on myself to regen HP from Canni.
During this, will also hit mob with malos and turgurs to make slow last longer. Each fight is probably around 4 minutes this way. He's got all of his Greater runes now, so any that drop from this point on are mine <grins evilly, rubbing hands together>. I'm not by any means uber (Magello out of date, but not a lot of upgrades from there) and I don't have any of my 70 level spells, and only 2 of the 69 rune spells. SK around 12-13k hp buffed and 2500~ AC I think.
Watch for the enrage at 10%, and back pet off, or make sure he is hitting from behind, or will get eaten in no time.
Hope it helps (again unless you are on Stromm server, then everything I said above is a lie).