New skill trees with 210 new skills, new base items, gems, runes, uniques, runewords, sets, crafting improved monster AI and new monster types, elite and heroic monsters, 28 uberquests for advanced characters, 5 challenges. Compatible with Diablo II Lord of Destruction 1.10/1.11/1.12/1.13 (PC/Mac).
Of all the Diablo 2 mods, this one takes the price. It's both hard and very balanced at the same time. I like that there's more monsters and weapons. I also like the Tier system. The Uberquest system is also awesome. The new skills are also great, so I say you check this out.