The creature put onto the battlefield with the ninjutsu ability enters attacking the same player, planeswalker, or battle as the creature that was returned to its owner’s hand.
April 14, 2023 · March of the Machine
A ninjutsu ability may be activated only while a creature on the battlefield is unblocked (see rule 509.1h). The creature with ninjutsu is put onto the battlefield unblocked. It will be attacking the same player, planeswalker, or battle as the creature that was returned to its owner’s hand.
April 22, 2021 · Strixhaven
A ninjutsu ability may be activated only while a creature on the battlefield is unblocked (see rule 509.1h). The creature with ninjutsu is put onto the battlefield unblocked. It will be attacking the same player or planeswalker as the creature that was returned to its owner’s hand.