Petal Dancer

Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)
{x}, Sacrifice Petal Dancer: Create an X/X blue and green elemental creature token. That token gains flying if blue was spent to activate this ability. The same is true for white and lifelink, black and menace