Item used as trigger launcher..?

This is about this werebear trigger stuff I worked with tlast eve... I made a blade that allows player to transform into werebear, but when I made the trigger launch through the use of item it only uses the item's own power, but not the trigger.

I created a hero class bear that replaces the player's hero when the item would be used. Could not get it working through the use of the blade which goes something like this...


Events:
- Item used by ((player's hero))

Conditions:
- Manipulated item equal to ((the blade))

Actions:
- Fade out ((With some special effects while fading))
- Create unit [Werebear] for player 1 in the position of ((player's hero))
- Set the experience of unit [werebear] equal to ((player's hero))
- Move item from ((player's hero)) slot 1 to unit [werebear]
- ((Moving the rest of the items))
- Remove unit ((player's hero))
- Fade in


So, it went on something like that, but did not work. But when I replaced the Event and Condition to following:


Events:
- ((Player's hero)) types in chat message [morph]

Conditions:
- ((Player's hero)) has item ((the blade))


And left the rest as it was it worked just fine. Those are the main things the trigger uses, I am not now on my home computer, but if you reguire to see the whole and exact triggers I will throw 'em in as soon as I get home. But since the trigger itself works fine the thing here is how to make it launch trhough the use of item? The item itself has Roar unit ability.

Melee Initialization
Events
Unit - A unit Starts the effect of an ability
Conditions
(Ability being cast) Equal to Roar
Actions
Your actions


Maby this wil work..(for "Roar" use your custom ability based of roar)

Thanks, maybe so.