The Hidden Hellkite

Flying
At the beginning of your upkeep, you may exile
the top card of your library. If you do, search
your library for a nonland card with converted
mana cost less than or equal to the exiled cards
converted mana cost, put it into your hand, then
shuffle your library.
{5}{g}{g}: Each player exiles the top card of their
library. Draw a card for each creature card exiled
this way.