Selerena, Dark Rouge

When Selerena enters the battlefield, you may
search your library, exile, and/or graveyard for
a creature named Elizabeth, Imprisoned Royal,
and put it into your hand. If you searched your
library, shuffle it.
When this creature dies, if you control a creature
named Elizabeth, Imprisoned Royal, you may pay
{3}, if you do, transform Elizabeth, Imprisoned
Royal.