Miracle, Fractal and Sky Blitz drain all hp as part of the cost.
Can't you just play your Miracle or Fractal first and then to use The Blood Price to reap off your benefits?
You have a few HP, a Miracle, a The Blood Price and a Golden Dragon in your hand. You want to play both your Golden Dragon and Miracle (they're both needed in order to win this imagined game), but you have only 18
quanta, so you play your Miracle first, you go at 99 hp, then you play The Blood Price (free cost) and pay your Golden Dragon for 36 life instead of 12
, ending with 64 life and a Golden Dragon.
You can also Fractal your Psions first, play The Blood Price right after and summon a Psion (or two in upped BloodPrice) by paying 12 life points for each one.