Uro, Titaness of Natures Wrath

Whenever Uro enters the battlefield sacrifice it unless it escaped.
Whenever Uro enters the battlefield or attacks, you gain 3 life and draw a card, you may then put a land card from your hand onto the battlefield.
Escape—{g}{g}{u}{u}, Exile five other cards from your graveyard. (You may play this card from your graveyard for its escape cost.)