Getzora, Temple of the Obzedat

Gerzora, Temple of the Obzedat enters the battlefield tapped, when it does you may pay {2} and discard a card, if you do this gains Obedience -target opponent reveals his or her hand, chose a card in it, whenever your opponent plays that card you may draw a card and gain 2 life (Once this land is destroyed its obedience ability stops).
{t}: add {w} or {b} to your mana pool.