Moon-Circuit Hacker (Showcase Ninja) [Kamigawa: Neon Dynasty]

Ninjutsu U (U, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever Moon-Circuit Hacker deals combat damage to a player, you may draw a card. If you do, discard a card unless Moon-Circuit Hacker entered the battlefield this turn.