This was one of Luna's early duels using Artifacts. It also shows one of the easiest ways to fight back against Pendulums, hit their Pendulum cards before they can pendulum summon. While Pendulum summoning can be powerful, it is actually rather slow in the sense that your opponent has plenty of time to just pop a MST and destroy one of your Pendulum cards in the Pendulum zone. If they have replacements in their hand then you still reduced the number of monsters they can summon.
