how do i make a spell?

how do i make a spell?

i wanna make the flame arrow spell, that bone chip use in dota, i tried attack + looping with cluster rockets, it didnt work.

hhhmm..dont play melee maps much do u
lok\ok for Searing Arrows in the NE carigory

ok ill try that, thx. but i have a feeling it wont work

Bone "Clinkz" doesn't have an ability like that shoots multiple arrows.

Did you find this spell off another map?