Neverknown

Double strike, Vigilance, Trample.
When Neverknown enters the battlefield you gain
10 life.
{g}{1}, Target creature cannot defend or attack for
5 turns.
{w}{2}, Neverknown cannot be blocked this turn.
When Neverknown dies, search your library for
the emblem called Overlife and put it into your
hand. Then shuffle your deck.