The Rainbow crystal (OP)

 This mod adds a new crystal, the Rainbow crystal. The crystal can be made into a block, a sword, and armor. The sword is OP it has 25 attack damage. To get the crystals you can trade with villagers or you can mine them. I say trading is easier. If you really want to flex then get a whole bunch of Rainbow Crystal blocks. You could build a statue of them and that would be a massive flex. This mod is inspired by the blue crystal in the  Blue Jerome video ♪ "RUNNING TO NEVER" - A Minecraft Original Music Video ♪.