'on damage' doesn't work in commands

[irondude_game]

I have this here:

command /avadakedavra:
aliases: /ak
trigger:
if player is holding a stick:
message "Avada Kedavra!"
make player shoot snowball
on damage:
projectile exists
projectile is a snowball
kill all players within 5 meters of the projectile

but it returns "can't understand this condition: 'on damage' (line ...)".
Anybody know how to make this work without taking the on damage out of the function?
Thanks!

(Pretend the indents are there, it doesn't allow me to indent. The "on damage:" is aligned with the message "Avada Kedavra!")

 

[Vane2k16]

Try this, works for me!

command /avadakedavra:
    aliases: /ak
    trigger:
        if player is holding a stick:
            message "Avada Kedavra!"
            make player shoot snowball
 
on damage:
    projectile exists
    projectile is a snowball
    kill all players within 5 meters of the projectile

 

[ShaneBee]

"
'on damage' doesn't work in commands
"
of course they don't, you don't/can't use events within other events/triggers.

proper Skript format

event:
    condition:
        effect