Thunder Dragondark is a Prismatic Secret Rare Effect Monster card from Yu-Gi-Oh! (2019 Gold Sarcophagus Tin Mega Pack, MP19). Current market price: $0.17.
Prismatic Secret Rare
2019 Gold Sarcophagus Tin Mega Pack (MP19)
Card Text
(Quick Effect): You can discard this card; add 1 "Thunder Dragondark" from your Deck to your hand. If this card is banished, or sent from the field to the GY: You can add 1 "Thunder Dragon" card from your Deck to your hand, except "Thunder Dragondark". You can only use 1 "Thunder Dragondark" effect per turn, and only once that turn.
