Artemies, the Ancient Druid

When Artemies, the Ancient Druid enters the
battlefield, Reveal cards from the top of your
deck until you reveal a creature, you may cast
that creature this turn for {2} less, shuffle the
other card back into your deck.
{g}{t} Reveal the top card of your deck, you may
cast that spell for {2} less.
If you do not cast revealed cards discard them
at the end of turn.