Unexpected Combustion

Unexpected Combustion deals 3 damage to
any target.
Madness {r} (If you discard this card, discard
it into exile. When you do, cast it for its madness
cost or put it into your graveyard.)
Flashback {2}{r} (You may cast this card from
your graveyard for its flashback cost. If you do,
exile it.)
That's not what I had in mind... But sure!