Covert Technician (NEO-049) - Kamigawa: Neon Dynasty Foil

Ninjutsu {1} ({1}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever this creature deals combat damage to a player, you may put an artifact card with mana value less than or equal to that damage from your hand onto the battlefield.