Doran is easy to kill... well, he gives you Demonbrand after 1/3-1/2 of his hp anyway
the problem is, that I wasted so many soullvls on being able to use it ;)
edit: just beat 4-2 .. man that place is infested with Black Phantoms - Old Hero is sweet and easy, most of the time he faced the opposite direction and slashed the air