Sahira, Bearer of False Wishes

Pacifist (This creature can't attack or block)
Cumulative upkeep - Pay 1 life.
Discard a card, put a wish counter on Sahira, then sacrifice it if it has 3 or more wish counters on it, {t}: Exile a permanent card from your hand, you may cast it without paying its mana cost this turn. If you do, it gains vanishing 2.
"If there's a single lesson that life teaches us, it's that wishing doesn't make it so."