Oreg and Raefl, Exotic Traders

Oreg and Raefl's power is equal to the number
of artifacts you control.
Whenever you cast a Beast spell, you may search
your library for an artifact with a converted mana
cost equal to or less than the number of Beasts
you control, and put it in your hand. If you did, shuffle your library.
One might think of Raefl as a mere pack-beast.
They'd be wrong.