Daenerys, Mother of Dragons

When Daenerys, Mother of Dragons enters the battlefield you may search for a dragon card,
shuffle your library, then put that card on top of
it.
Dragon spells cost {1} less to cast.
Lands you control tap for one additional {r}:
Use only when casting dragon spells.
"For the first time in hundreds of years, the night came
alive with the music of dragons."