How can I make a ward cast a spell?

[Estel3]

Similar to lots of maps, namely dota and Pugna's Ward, I need my ward to cast a channeling spell. Is it a problem with the classification of the unit, should it not be a ward?

Thanks in advance.

 

[AceHart]

> Is it a problem with the classification

Wards cast spells just fine.

 

[Estel3]

Huh, must have been a problem with my trigger. I just redid it and it works. Thanks.