Risk's Reward

Kicker - Sacrifice an artifact or creature.
Look at the top 5 cards of your library, exile one
of them face down, then put the rest on the bottom of that library in a random order. For as long as that card remains exiled, you may look at it, you may cast it, and you may spend mana as though it were mana of any type to cast it.
If Risk's Reward was kicked, look at the top 8 cards of the permanent's owner's library instead.
"Come, Ragavan, prince of mine, let's have a look inside, shall we?"