The Shovaxe has the power of a shovel, axe, and pickaxe all in one. It never runs out.
The Battleaxe is 1 damage point stronger than a sword.
The Crossbow fires out arrows. There is a Fire Crossbow that shoots ignited arrows.
The Hammer is very powerful, very efficient and very expensive.
There is also a new gem and armor set in the mod, called Zenitte. You have to find ruby ore, mine it, then use smelted ruby, emerald and obsidian (which turn liquid) in a recipe to make one zenitte gem. You then use the zenitte to create armor with the same recipes for any other material. The process is shown here.