I really suggest that minecraft has something like ores on nether like that ore can make a ghast fireball it will give about 1-2 rocks which it will spawn in a group of 3-5 each 3 rocks=ghast fireball and put coal as well

_ _ _

_ coal _

rock rock rock

that is how you make a ghast fireball make like 3 fireball for that

This will help players to kill ghasts faster and easier

this ore are brown in texture and are only found near lava i hope i help minecraft by this k?

diamond if you like the idea