Problem with ALL the creature copy cards

Hi there!
I was trying to use the Reveillark + Body double combo in a birthing pod deck
and I noticed a problem that
if the body double(or Phyrexian Metamorph, Phantasmal image) in the graveyard has copied a creature card with power greater than 2 before going to the graveyard, then the reveillark cannot return it onto the battlefield.
So I am wondering what can I add to the xml file to make these cards reset their datasheet once they were in the graveyard?
I was trying to use the Reveillark + Body double combo in a birthing pod deck
and I noticed a problem that
if the body double(or Phyrexian Metamorph, Phantasmal image) in the graveyard has copied a creature card with power greater than 2 before going to the graveyard, then the reveillark cannot return it onto the battlefield.
So I am wondering what can I add to the xml file to make these cards reset their datasheet once they were in the graveyard?