If Cyber Dragon is in your GY: You can activate 1 of these effects. If you have 3 or more Cyber Dragon in your GY at activation, you can activate both effects and resolve in sequence. You can only activate 1 Cyber Repair Plant per turn.
• Add 1 LIGHT Machine monster from your Deck to your hand.
• Target 1 LIGHT Machine monster in your GY; shuffle that target into your Deck.