I agree with Jorael..
But if you wanted to do this, perhaps the following wording would be nicer
"3: Return target creature card from your graveyard to play and attach ~this~ to it. Use this ability only when you could play a sorcery."
You could add the equip ability and make it useful for the equipped creature.
"Equip 3
Equipped creature gets +1/-1.
Whenever equipped creature is put into a graveyard from play, remove it from the game instead"
Now you could reanimate creatures at will with this equipment."
or something really awful like"
"3: Return target creature card from your graveyard to play and attach ~this~ to it. Then put a Pain counter on ~this. Use this ability only when you could play a sorcery.
Equip 3
Equipped creature gets -1/-1 for each Pain counter on ~this."