Sinister Serpent (SBC1-ENH09) - Speed Duel: Streets of Battle City 1st Edition

During your Standby Phase, if this card is in your GY: You can add it to your hand, also banish 1 "Sinister Serpent" from your GY during your opponent's next End Phase. You can only use this effect of "Sinister Serpent" once per turn.