Blast charge to get ghast fireball easily

I propose the idea of a new charge, the blast charge, that is made by upgrading a fire charge. Using a smithing table (they can stack don't worry), You first put a wind charge in the template spot, then the fire charge in the upgrade slot, and finally a mineral probably like glowstone to fuse them. This new charge looks like a fire charge with wind or fire, and it literally is just a ghast fireball that acts like a charge. The only thing is ghast explosions are small, and it barely damages my upcoming idea for a block of armadillo scute. So it shouldn't be too op. If it is, thats a problem of the ghast.