As soon as the enigma was released it caused an out-pouring of underskilled players pop'ing around with tele. Then the hammerdin + enigma was born and all hope was lost for other character designs. Basically if you want to rush hell quickly/efficiently you will be required to roll a hammerdin, bone necro, ele druid, or sorc. All of which require the enigma to be used (with the exception of the sorc). I'm not saying other classes can't do it, I'm saying if you want to be quick then you have to roll on of the above.