spells and environment effect help PLEZ

spells and environment effect help PLEZ

I was wondering if anybody knew how to add blight or whatever to a moving object, like an arrow, I tried but couldnt get it quite right. It kept only producing under the target not the arrow.

Hm.I don't know what this "arrow" is.The model of the arrow?Whatever.I think you need to use triggers.

Event
Unit-A unit enters region
Condition
Unit-Type comparison-(Unit type Equal to (your unit,or the arrow)
Action
Special Effect-Attach effect small blight to origin of your unit,or the arrow.

Correct me any please spell-gods of the forums oO