Naxter's Loaded Dice

{3}, {t}: Roll a d20.
1-10: Look at the top 3 cards of you library,
put them back in any order.
11-17: Look at the top 5 cards of you library, put them back in any order.
18-20: Look at the top 5 cards of you library, put one into your hand, and put
the rest back in any order.