So unsummon states return target creature to owners hand. The question arose can a creature in the graveyard be the target of the unsummon? (Sorry if this is posted somewhere already, I couldn't find it)
No. If its in the graveyard, exile zone, hand, or deck, its just a spell. If its on the battlefield, its a creature and thus can be {unsummon}ed.
RESOLVED
THANK YOU! Sorry for yelling but it's been three against one for so long, I got overly excited when another voice of sanity was heard.
Also, keep in mind that the card will specify if it targets something in the graveyard, like {Cadaver Imp}.
Yep, no problem!