Noam, Cleric of Futures

When Noam ETBs, Exile the top x+1 cards of
each opponent's libraries where x is equal to the
number of enchantments you control; for each
opponent, choose 1 to remain in exile and
bottom the rest in a random order.
{x}, {t}: Cast a card exiled with Noam with cmc x.
If Noam LTBs, bottom any cards in exile from
his ability.