Unfortunately, that flavor doesnt translate to power, as Phoenix of Ash is definitely far too slow for any of the Magic formats its legal in
X can use any attack, Pok-Power, or Pok-Body from its previous Level
We do, however, know the colors
It works a little bit differently if you just dump a bunch of counters on a saga all at once (think: Deepglow Skate)
If you play an instant or activate an ability that makes you draw on an opponents turn and that drawn card has miracle, you can immediately play that card after the trigger if you can afford it and it has legal targets
It's like the most anti-Pauper card of all time, encouraging you to get the higher-rarity version of every card you can