Jade Knight

Level 4 LIGHT/Machine Effect Monster
1000 ATK / 1800 DEF

While this card is in Attack Position, Machine-Type monsters you control with 1200 or less ATK cannot be destroyed by Trap effects. When this card is destroyed by battle and sent to the Graveyard: You can add 1 Level 4 LIGHT Machine-Type monster from your Deck to your hand.

Rulings – Yugipedia

Printings:

Crossroads of Chaos: CSOC-EN037 (Short Print) - 2008-11-18
Cyber Dragon Revolution Structure Deck: SDCR-EN014 (Common) - 2014-02-06
Speed Duel: Battle City Box: SBCB-EN069 (Common) - 2020-11-26

Prices:

Cardmarket: 0.11 €
TCGplayer: $ 0.19