Mary, the Unstoppable

Haste, Hexproof, Lifelink
When this creature enters the battlefield, draw a
card, you gain 3 life and put a land card from
your hand onto the battlefield, then untap it.
Non-creature spells cost {1} less to cast.
Whenever you cast a non-creature, either
draw a card, gain 3 life or put a land card
from your hand onto the battlefield, then
untap it.