of course the attacked unit doesn't have the buff on that time. you must wait about (distance/missile speed) second.
umm...i dont really know wat u try to say here...
Charm only works when the unit is attacked by the arrow, so it suppose to work after the missile is launched and hit the target. Thatz wat i was thinking.
And since the arrow was based on unused Posion Arrow Spell, the unit that is attacked by the arrow will have a buff. i made the buff last 1 sec, so in that duration the trigger will run. you probably should look at how the original Posion Arrow works.
i gave a negative life regeneration for the dummy, so it will die after one second.
when u say itz 'wrong', do u mean itz bugged? if not then itz not really a big deal, i hope.
btw, for ur jazzed Charm Arrow, i did everything u said except check the orderstring
