This sure reminds me of Devilman.
RD/GRD1-JP030 ネビュラ・パワー Nebula Power
Normal Trap Card
[REQUIREMENT] You can activate this when your opponent Normal Summons a monster.
[EFFECT] Choose 1 face-up Galaxy Normal Monster you control, during that turn, it gains 500 ATK x [The number of monsters your opponent controls].
