Dr Breuner, Sage of Ancients

Whenever you cast an enchantment spell, look at
the top 2 cards of your library; put 1 into your
hand and the other on the bottom of your library.
When Dr Breuner dies, choose 1:
* Search your library for an enchantment cmc 4
or less and put into play.
* Search your library for an enchantment cmc 5
or greater and put it into your hand.