One of the first things you should look for when grading Pokemon cards is how even or uneven the centering is
A fun, fair, fantasy game with excellent art, an amazing community, and an excellent pool of diversity
Act on Impulse came soon after in the next Standard Set (Core Set 2015, 2014)
Usually, this involves setting Spells and Traps for the next turn, or bolstering your defenses if your opponent surprised you with an effect during the Battle Phase
He shuts down larger spells, hurts ramp, storm, buyback, my own Equinaut deck (which likes to play and replay creatures), and countless other decks that either want to cast something big or net multiple spells
Crown Zenith was an explosive, fantastic end to the Sword & Shield era, with its drop rates and amazing card art, which makes it a solid investment even today