i try leveling my gx on nogg road and mid TI and i found out like i still need potion to survive. i mob more than 10 monster each time but still it doesn't enough to make me survive longer.
this is my leeching gear
+10 malicious set
+9 rideword
+7 Double Malicious Crimson Katar
Incubus Pet
Earth Deleter Armor
i finally use WPH set to survive in nogg road.