HELP PROJECTILE/SPELL HELP CUSTOM

HELP PROJECTILE/SPELL HELP CUSTOM

i need something like blizzard...
but instead of ice
make it falling bombs
the bombs from flyingmachines/gyrocopters
and when it hits the ground make it explode !!
small craters were they explode wud be nice


im not sure if this can be done
if someone can or has a suggestion plz help

Just change the buff of blizzard and add some effects etc.

thanks

thanks
u helped me a lot
even b4 on my other questions
allooooooonnngg time ago