A Fathers love

When A Father's love enters the battlefield
you may reveal the top four cards of your library
and reveal a summon and put it into your hand.
Put the rest on the bottom in any order.
If Terra is on the battlefield you may exile
a card named "Maduin" from your graveyard
and search your library for a card named
"Trance Terra" and put it onto the battlefield
tapped with one stun counter.