So given the system for loot and consumables why doesnt d2 have a monster arena. It could be like a tower system where you go up floors of the tower and each floor gets progressively harder and the enemy types are randomized. And as you go up in floors loot gets better as well. And depending on how much you contribute or how well you perform you would pick up loot bonuses. Its not necessarily hard to make and it would give a lot of people what they want as far as combat goes.