Nasha, Light of Hope

Nasha, Light of Hope costs {1} less to cast for
each card you've draw this turn.
Whenever you draw a card, you gain 1 life.
{w}{w}: Exile target creature with power equal or less than the number of cards in your hand.
{3}{u}{u}: Put your hand at the bottom of your library in any order and draw that many
of cards.