Blue Eyes, the Soul Mage

When Blue Eyes, the Soul Mage enters the
battlefield, target player mills cards equal to
your life total.
Choose 1:
-You gain 1 life for each creature that is put
into the graveyard this way.
-You may shuffle your graveyard and hand into
your library, then draw 7 cards
-You may exile target permanents equal to the
number of lands put into the graveyard this way.