Interrupting recursive plays is becoming practically a requirement in every deck, and Ethereal Absolution does that and gives you a 2/2 flying token that can only be effectively blocked by a 3/3 flying creature
Theres also a surprise appearance from Meowth and Pidgey
You also no longer need to worry about balancing extra copies of Fighting Energy in the Gengar VMAX build and get to play helpful cards like Hiding Darkness Energy (Darkness Ablaze)
It requires a total of 6 mana, so it is not realistic to hold it up every time, but having it as background knowledge can help you overcome difficult situations
If "Change of Heart" is used twice in one turn, on adjacent monsters, the first card will return normally, but when the second returns it overlaps the first and disappears from the Duel
but Im wondering if the coloring seems off to anyone