Reliquary adds a bunch of new and enchanting, not to mention hard to get, items to aid your Minecraft experience and challenges. This mod relies heavily on finding exotic and mysterious items to craft and wield magical tools. The Infernal Chalice, for example, will help prevent fire damage to the player at the expense of hunger. So if you’re holding this item in your inventory you won’t be burned but your hunger will drain at about the same rate as your air supply in water.
Conversely the Emperor’s Chalice is great item for infinite water storage and usage. You can use it to place water anywhere but if you shift+right-click with it in hand, it’ll allow you to collect water instead.
There are some new tools for defense as well like the Hunter’s Handgun that takes rounds with varying affects applied to them. This one can get a little complicated so check the forum link below for detailed instructions on how to use it.
And the invisibility cloak will make you invisible at night when worn.
There’s also a neat item called the Void Tear that can hold an unlimited amount of a single item. This is great for mining and not having to continually go back to a chest for storage of cobblestone. It will automatically collect common items as they are broken.