Armalite

Exists only in The end and is very rare (much rarer than ancient debris). This ore could be put in an enchantment table to make new enchantments available.

It could also be added to armor in the smithing table. When doing this the player would be able to add multiple types of protection. As well as on tools (for example ifinity and mending, sharpness and smite, etc. ...) However you have to use one Armalite crystal on each new added type of protection. However, one crystal would be hard to make because the player would have to use nine Armalite shards to make one Armalite crystal. And to top it all of, Armalite would be extremely hard to obtain. It will hurt the player while having it in his/hers inventory and explode all chests it is put in, exept ender chests.