Right, I figured that I could put it on anyone regardless of sphere. I would like to ask if it's possible to move it from the second hero if he is tactics, etc. to another hero?
Yes, it's possible. The action just specifies that you have to pay a resource from the attached hero's resource pool; it doesn't specify that the resource has to be of any sphere. You could even use it on hero Gandalf, then have him pay one of his resources to move it to someone else. There are no resource restrictions whatsoever on the card once it has had its initial 1 Leadership cost paid for.