Autocast question

Autocast question

Is it possible to make a spell, such as cluster rockets or shockwave, be able to use autocast?

Make a spell on Faerie Fire or Curse. Add this and Shockwave to hero. Set time to 0.01 or something like this and make trigger:

Event
A unit begins effect of an ability
Condition
Ability being cast equal to YOUR FAERIE FIRE
Action
Order Casting Unit to Tauren Cheftain-Shockwave Target of ability being cast

Thx, that helped alot.