Holy crap, with the ball o hurt I killed the worm boss in like 2 mins. VERY easy.
And I only used 6 potions.
On the other hand, I can't handle hell. =/ Never manage to mine anything. (hell is the last layer yeah?)
EDIT: War Axe of the Night, The Breaker - are they worth it? I've got spare demonite bars now. I've already got a full set of shadowscale armour.
EDIT2: Well I made both. Now I have loads of shadow scales and demonite ore. I have no idea what to do with it. That means there's no more point in killing the worm boss.