Spiritual Screening

If this card is in exile with a shadow counter on
it, you may cast it. If you do, it costs {2} less to
cast and when you cast it you lose 2 life.
Once per turn, when you would surveil, you
may instead discard a card. If you do, surveil 3
and then draw a card.
{3}{u/b}: Surveil 1. Activate only as a sorcery.