I have noticed that in gardens of hope first tier there is pretty big chance that there will be champ/elite pack just close next to waypoint simply walk down the stairs and there he shoud be + there is pretty solid chance that this pack will be only those "walking torso" style which have pretty low hp and are slow so its just easy farming i have pretty bad geared dh and i take them down with just a few deaths.
PS: use quest prime evil so you can borrow Tyrael for help he does a lot + prevents mobs to get healed to full since he keeps them in combat whole the time