The best card in the archetype, "Runick Fountain", allows players to activate their "Runick" spells from their hand during the opponent's turn, making every card in the hand a potent threat to an opponent trying to set up their optimal board
With Metal Reflect Slimeor Guardian Slime, you can play this card by itself, protecting other monsters and hitting the 3000 wall
Its also one of those cards where being a collector's rare gives you a better look at the cards art design
However, for many players, the Password system was a novelty never used because of one small problem
Goat Format deck that is distinguished by its 3 chaos monsters (1 Black Luster Soldier - Envoy of the Beginning and 2 Chaos Sorcerer), 3 Metamorphosis, and 2 Scapegoat
With only 46 of these cards rumoured to be in existence, they make for a pretty rare find, especially in mint condition