Quest for the Holy Relic [Zendikar]

Set: Zendikar Type: Enchantment Uncommon Cost: {W} Whenever you cast a creature spell, you may put a quest counter on Quest for the Holy Relic. Remove five quest counters from Quest for the Holy Relic and sacrifice it: Search your library for an Equipment card, put it onto the battlefield, and attach it to a creature you control. Then shuffle your library.