Crescendum

You may cast this as though it had flash only
when the stack is empty, if you do casting cost {2} more. Reveal the top card of your library until
you reveal a creature card with CMC equal to 2
and put it into play. When you cast this spell, if
this is your second spell this turn and control Aphelios, search you sideboard for Calibrum or Severum and exile it. If this goes to the graveyard
put it in your sideboard instead.