{Agoraphobia}
A couple of questions in this card:
-can you bring this card back from the graveyard?
-and can you bring this back to your hand after damage is dealt to enchanted creature and before it goes to the graveyard?
Tothe first one: no, just think about it in terms of other cards. It is an activated ability. So could a {Griselbrand} activate his ability while in the yard? Nope. Abilities can only be activated when a card is a permanent on the battlefield, unless it is a specified ability that says you can.
To the second one: no, if the creature is dealt lethal, it is sent to the yard as a state based action. You can't respond to SBAs. You could return it before the damage step, but sadly not after the enchanted guy is dealt lethal. You can do it in response that gives things lethal, like if {Thragtusk} is enchanted and you cast {Lightning Bolt} on it, before bolt reaolves you can return the enchantment to hand.
RESOLVED
No it has to be on the battlefield to activate bringing it back to your hand
Got it thanks