- You cannot pay a Resona's emerge conditions and declare that you will not play the Resona. (i.e., you cannot send 2 <Insect> SIGNI from your Ener Zone to the trash and declare that you are going to play Kumamusu, Black Phantom Insect, and then declare you are not going to play Kumamusu.)
- Even if the opponent has Code Art ACG on the field, you can pay the Resona's emerge conditions of Kumamusu, Black Phantom Insect, since it does not require sending your SIGNI from the field to the trash.
- During your Ener Phase, when you move Kumamusu to the Ener Zone from the field, since moving Kumamusu to the Ener Zone this way does not count as a vanish, Kumamusu will return to the LRIG deck.
- When your opponent's Arcgain, Archangel of Pioneering or Contempora, Inexplicable Superboast has a Charm placed under it by this SIGNI's ability, your opponent must still pay × 3 to attack with Arcgain/Contempora.