Thunder Dragonmatrix

Level 1 LIGHT/Thunder Effect
0 ATK / 2000 DEF

(Quick Effect): You can discard this card, then target 1 Thunder monster you control; it gains 500 ATK. 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. You can only use 1 "Thunder Dragonmatrix" effect per turn, and only once that turn.

Rulings – Yugipedia

Printings:

Soul Fusion: SOFU-EN018 (Rare) - 2018-10-18
OTS Tournament Pack 9: OP09-EN006 (Super Rare) - 2018-12-06
OTS Tournament Pack 9 (POR): OP09-PT006 (Super Rare) - 2018-12-06
2019 Gold Sarcophagus Tin Mega Pack: MP19-EN166 (Common) - 2019-08-29

Prices:

Cardmarket: 0.12 €
TCGplayer: $ 0.27