I'd say back in 2.0 when Titan HM was crushing the majority of the player base and everyone was struggling, my party dropped him 3 times in 30 minutes using 6 Warriors, 1 Scholar, and a Monk. It seemed like a total cakewalk. Then shortly after that, killed Hydra with 3 Paladin and 5 Warriors and no healers at all. This was when max ilvl was 90 and the average gear was 70's, no echo. Fun times.