The answer is tricky, but that's just because it's a Sphinx
This can also work in our favor, though
This paticular Pokemon TCG card was given only to people who had helped during the pre-release event for Team-Up Black Star
Its just cheap enough to be playable when you need it in aggressive games, and also allows you to play counterspells or whatever else you want later on without requiring a hefty mana base
Next up, the best mana in 3 card blind (which is conveniently exactly enough mana to cast Laboratory Maniac): Adds three mana only once, but conveniently since we dont have that many spells to cast, once is often all we need
Christopher Robin Hunny Sage Completely Changes the Rules of Disney Lorcana Christopher Robin Hunny Sage does three very important things for Amethyst/Sapphire decks, all of which make it an invaluable piece of tech