Magisite

Magic ore, purple. Looks similar to red stone but purple. Is connected to the lore of crying obsidian. But the ore can be found in the end islands below half the end islands height (so you have to dig down or go to the lower parts of the end islands), or at -45 and below at the rarity of diamonds. Can be used for magic functions, like staff, wizards castle, skeleton nights with swords, maybe they have copper swords. They ride the skeleton horses sometimes and they have bows. The wizard uses magic for staff ammo. Magic can be used in a potion. It can be added onto tools if you make a magic enchanter which is made with copper, iron and obsidian. In that slot you can add it on a tool to increase the range. Or make a magic ball which can be thrown and explodes or can make magic tnt which is double strength, magic can also make potion of levetation. It can make a launcher pad (slab) which launches you your 5 blocks high when you stand on it (made out of copper iron and magisite). Endermen have a 20% chance to drop magisite essence and 9 can craft a magic powder. And endermites have a 40% chance to drop. Magisite can also be found in warped nether forests biomes at lapis lazuli rarity, being why endermen spawn there. Magisite can also be crafted with an amathyst Cristal which makes a magic Cristal, used to make a magic staff.

the skeletons with swords can also throw Magisite bombs at you, and have a 20% change of dropping one upon defeating one.