I believe that ghasts should get a bow that shoots ghast fireballs but with mob griefing turned off so they don't destroy or light anything on fire the power of the explosions can be increased/decreased using mc edit or other external editors also the bow could have a cool down so it could be a say 3 heart explosion with 3 second cool down or say 15 heart explosion with 10 second cool down (wither skeleton but flies slower and more straight but has a bigger aoe and sets them on fire but it's a VIP class so it can be about as good/better than wither skeleton I mean hey look at slime). Soooooo yes this seems like a good idea to me :D feedback is nice please be kind and as always stay cool :D