Sophira, Flame of Keld

: At the beginning of your upkeep, discard your hand, then deal damage to target creature or planeswalker equal to the number of cards discarded.
+1: Exile the top two cards of your library. You may play those cards this turn as long as you have no cards in your hand.
-6: Instant and sorceries in your graveyard gain flashback until end of turn. Add 10 red mana to your mana pool.