Bismarck.Llewelyn said:
»I did the Garms/Haunts in Bostaunieux Oubliette for an undead trial. There's 6 Garms in maybe a span of 20 yalms, and running down a short corridor will bring you to 3 (maybe 4, don't remember) more Garms and 3 Haunts. Never had to cure myself the entire time I was there with Regen gear moving between mobs. This was on Samurai, though. Not sure if it'd be any different for RNG.
Im most the way through the 400 undead atm. Same zone, Bostaunieux Oubliette, but doing the Haunted Hounds. They are in the hallways leading to where the Garm are located, so you can't miss them. The are basically the lower level EP there is to a 99. There are 5 of them, but more spread apart than the Garm. The hit for less, and will miss you more often. As Rng/War using dwomer bullets, I'll shoot once, melee with an m.kris to 66%, and Use Coronach. It should kill it. By the time the last Hound is dead, the first should be repopping.
It's not a hard trial, just a final, annoying grind. It is also safe and faster than the skulls in abyssea