(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.