Firewall Dragon (COTD-EN043) - Code of the Duelist Unlimited

2+ monsters
Once while face-up on the field (Quick Effect): You can target monsters on the field and/or GY up to the number of monsters co-linked to this card; return them to the hand. If a monster this card points to is destroyed by battle or sent to the GY: You can Special Summon 1 monster from your hand.