Call Dragon

Level 1 - Search your library for a dragon card with mana cost 5 or less. Draw it, you may play it without spending mana this turn.
Level 2 - Search your library for a dragon card with mana cost 6-8. Draw it, you may play it without spending mana this turn.
Level 3 - Search your library for a dragon card with mana cost 9-12. Draw it, you may play it without spending mana this turn.