Spell Expansion

Target instant or sorcery in your graveyard gains
flashback until end of turn. The flashback cost is
equal to its mana cost. (You may cast that card
from your graveyard for its flashback cost)
Flashback-- {1}{r}{r} (You may cast this card
from your graveyard for its flashback cost.
Then exile it.)
When one snapcaster isn't enough!