Chandra, Flame's Catalyst

[+1]: Chandra deals 3 damage to each opponent.
[−2]: You may cast target red instant or sorcery card from your graveyard. If that spell would be put into your graveyard, exile it instead.
[−8]: Discard your hand, then draw seven cards. Until end of turn, you may cast spells from your hand without paying their mana costs.