Spellbook Whirlwind

At the beginning of your draw step (After you
draw a card), you may choose a card in your hand
and put it aside. Search your library for all cards
with at least one card type of the chosen card and
put them into a pile. (The card types are creature, sorcery, instant, artifact, enchantment, and planeswalker.) Choose a card from that pile at
random and put it into your hand. Shuffle the
pile and the card which you put aside into your library.