Prohibit Snake (FIGA-EN038) [Fists of the Gadgets]

At the start of the Damage Step, if your Cyberse Link Monster battles an opponent's monster: You can send this card from your hand to the GY; return that opponent's monster to the hand. When your Cyberse monster destroys an opponent's monster by battle and sends it to the GY, while this card is in your GY: You can banish 1 card from your GY, then target 1 Level 4 or lower Cyberse monster in your GY; add it to your hand. You can only use each effect of "Prohibit Snake" once per turn.