This mod adds a new item: the Magic Apple, an upgraded version of the Notch Apple.

As of the latest version, when eaten, it grants Health Boost V for 5 minutes, Regeneration I for 5 minutes, Luck II for 10 minutes, Haste I and Fire Resistance I for 10 minutes, Glowing for 10 seconds, and Strength I for 10 seconds.

How do I obtain a magic apple?

You can trade 9 emerald blocks and 2 notch apples with a wandering trader to obtain a Magic Apple, or you can craft it.

The Cursed Stone

The Cursed Stone, added in version 1.3 can be obtained when witches die from lightning. When right-clicked in the off-hand, it grants Strength I and Health Boost I for 2 minutes at the cost of Hunger II for 3 minutes.

This mod is made for my hardcore modpack Permadeath+ so check that out!
In my opinion, this mod best in very modded environments.
Check the changelog for important info.
Of course you are allowed to use this in your modpack!
Rumored to originate from the Far Lands.