You have at least three additional cards in your graveyard.
({4} magic symbol) ({R} magic symbol) available.
Steps
Cast Path of the Pyromancer from your graveyard for its escape cost by paying ({4} magic symbol) ({R} magic symbol) and exiling three other cards from your graveyard, causing you to discard your hand, add ({R} magic symbol) for each card discarded this way, then draw a number of cards equal to the number of cards you discarded plus one.