You can only activate either this card name’s (1) or (2) effect per turn, and only once that turn.
(1): You can discard this card to target 1 Thunder monster you control (Quick Effect); that monster gains 500 ATK.
(2): If this card is banished, or sent from the field to the GY: You can add 1 “Thunder Dragonmatrix” from your Deck to your hand.