Yuriko, the Tiger's Shadow (Love Your LGS 2021)

Commander ninjutsu UB (UB, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand or the command zone tapped and attacking.) Whenever a Ninja you control deals combat damage to a player, reveal the top card of your library and put that card into your hand. Each opponent loses life equal to that card’s mana value.