Jhen Mohran, the Sand Shifter

When Jhen Moran enters the battlefield, each
player may pay 4 life. Each player who does may
return a land from their graveyard to their
battlefield tapped.
When Jhen Moran Attacks, you may return a
land card from your graveyard to the battlefield
tapped.
{4}{g}{g}: Return Jhen Moran to your hand.