Change Attack Type During Game

[Ithladir]

Hi ive been trying to make a spell that would change my hero's attack type, but failed to find any solution...
For starters i made a spell that did nothing. then a trigger with the simple

Change Attack
Events
Unit - A unit Begins casting an ability
Conditions
(Ability being cast) Equal to Magic Attack
Actions

But i find nothing in Actions that could help me :l
Please find any way to solve this thanks to all who try help

 

[Fire-Wolf]

Sry you will have to make another type of the unit and just Replace the one unit with the other..

 

[Ithladir]

Wow, that could be a problem ^^ well not that i didnt expect this outcome :l i guess i'll drop the idea sience the unit is a hero, and it'll take more than i can handle to swap those in a smooth way :l well thanks anyway