The card itself is a Pendulum retrain of an OCG-only card released back in 1999 called LaMoon
She pairs with Zeus's Thunder effects from the Blue side, running a dual engine where Blue provides tempo and Yellow provides reactive pressure
Nice Job Breaking It, Hero!: His fanatical research into the power of Duel Monsters (sending cards into space, studying Duel Energy, etc.) so as to find a way to defeat his rival causes the game to mutate into increasingly catastrophic forms as shown in the subsequent shows in the franchise
Synergies are important to this deck, but don't get so stuck on a cool combo that you end up throwing the game for it
Deck construction and strategy are central activities, with the game serving both as a teaching tool for newcomersthanks to stepbystep tutorials on summoning mechanicsand as a sandbox for veterans to experiment with archetypes and tactics
Also, the cards in question are First Edition (which are differentiated by a small bit of foil)