In this episode machine monsters are unaffected by magic attacks, but in a previous episode against the brothers of the labirynth, dark magical destroyed labirynth tank with a magic attack... 😉
All the monsters in a pendulum deck are called pendulum like the elemental hero set. The fact pendulum monsters existed before they debuted but with regular rules can be seen as some to be humorous or predicted, etc. can add excitement or not.
