Fields of Gzhel

When Fields of Gzhel enters the battlefield
destroy all lands. Put X*2 counters on Fields
of Gzhel, where X is the number of lands
destroyed this turn.
Players can't play lands. Players may spend
counters on Fields of Gzhel as though
it were mana of any color.
When Fields of Gzhel has no counters on it, sacrifice it.