Can't make a Fireball execute a command in a radius

What I'm trying to do is simply this:

/execute @e[type=Fireball] ~ ~ ~ scoreboard players set @a[score_mage_min=1] Cooldown 15

And applying it only to players with mage score of 1 in a 2 block radius. So I found out that I had to make something like this:

/execute @e[type=Fireball] ~ ~ ~ scoreboard players set @a[score_mage_min=1,r=2] Cooldown 15

However it doesn't work, and I cannot realize why.

Best Answer

You have to do:

/execute @e[type=Fireball] ~ ~ ~ scoreboard players set @a[score_mage_min=1,r=3] Cooldown 15

So make it in a radius of 3 instead of 2. And if you want to make fireballs do:

/execute @e[type=Snowball] ~ ~ ~ /summon Fireball ~ ~ ~ {direction:[],ExplosionPower:1}

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