ideas for magic themed mod

i need ideas for a magic themed mod out of certain materials. these ideas need to fit the theme of the mod and also be possible in mcreator

these can be items / blocks

i also dont know how to properly add images so sorry for inconvenience

the materials:

ectoplasm, it drops out of dark ghosts from a cursed forest

currently it makes a sword and a staff

earth essence, it drops from rock spirits

currently it makes a sword and a staff

void crystal, it is mined from very deep underground from bedrock using a diamond drill

it currently makes a sword and a staff and a block

Here are the images URL incase i failed to add the images

ectoplasm: https://imgur.com/a/bTz56Rt

earth essence: https://imgur.com/a/rEaJhzP

void crystal: https://imgur.com/a/R2CpvbH