Urashe, The Sand Wurm

When Urashe, The Sand Wurm enters the battlefield, it deals 3 damage to any target and
you gain 3 life
When Urashe, The Sand Wurm leaves the battlefield, create a 3/3 wurm creature token
with trample
{w}{b}{g}, {t}: Exile Urashe, then return him to the battlefield under his owners control