Rosalina, Cosmic Princess

{2}: Create a 1/1 flying creature token called Luma
with "Sacrifice Luma: add one mana of any color"
{1},{t}: Counter target spell unless that player pays
2 of any color not used to cast that spell. If you
counter a spell this way, its controller makes a 1/1 flying creature token called Luma
with "Sacrifice Luma: add one mana of any color"