DawnFractured Egg

if it is day you may add one Dimensional Ageus from your library to your hand
if it is night you may add one Cosmic Memento from your library to your hand
if neither is in your library change the cost of a creature in your hand to 0 and remove this card from the game
"its so warm and shines with such brilliant light"
"that's because it is a seed for a new world"
"I hope its for a world as beautiful as this one"