Altar of Worship

Cycling {3} (Discard this card: Draw a Card)
Sacrifice a creature : add {e}
{t} Pay {e}{e}{e}, look at the top three cards of your library.
If one of these cards is a instant, sorcery or enchantment
you may exile it. Put the rest into your graveyard.
As long as you control Altar of Worship,
you may play the exiled card without
paying their mana cost.