Orb of Slow Help!

[13est]

I'm currently using Orb of Slow spells, that way I don't need to trigger passive spells. (a hero attacks having 20% to cast a spell don't need to be triggered then)
But this only works for NUKE spells, got pretty angry at this.
So for some spells I thought I could just trigger them using the orb of slow.

But the problem is I don't know how to locate the orb of slow.

First of all I have a unit begins casting ability (tried others)

and with the condition, I don't know if I should look for the Orb of Slow spell, or the dummy nuke spell (based on purge as it won't ministun them and only slow them a little)

I do not need help with triggering the Spell, just finding the Dummy spell (when the orb of slow triggers)

 

[Drunken_God]

i dont think your hero will cas a spell
why not trigger it ( it wont be too hard to create a dummy and let it cast sth)

 

[13est]

You'r problary right. Trying to figure this out would possibly take longer time then triggering 3 passive spells.

 

[T.s.e]

As far as I know, there is no direct way to detect Orb of Slow or orb of lightning. Sure, you can detect if it has a buff... but not directly when it's casted.

 

[Nexor]

Orb of Slow has that bit problem, that it NEEDS attack order, to cast the spell. Triggering the spell would be better