Supreme King Dragon Darkwurm [BLRR-EN063] Secret Rare

If this card is Normal or Special Summoned: You can add 1 "Supreme King Gate" Pendulum Monster from your Deck to your hand. If this card is in your GY and you control no monsters: You can Special Summon this card. You can only use each monster effect of "Supreme King Dragon Darkwurm" once per turn.