Magic Words is the 217th chapter in Tsubasa: Reservoir Chronicle.
Syaoran recognizes the pair (Sakura and Syaoran Li) as his parents. Watanuki watches this scene thanks to his visions.
Sakura tells them, "don't worry, it'll be alright" just like her other self told her, as she met her in a dream. In a flashback, we meet Sakura Kinomoto in her school uniform handing her the Star Staff, saying that the Sakura Cards will still be there for her, even without the staff.
Sakura and Syaoran's magic circles appear, Syaoran grabs his son while Sakura Kinomoto grabs Princess Sakura. Fye tells Kurogane and Mokona not to leave that "space" (the magic circles). Sakura and Syaoran Li say they won't let the world be destroyed, as they use their tremendously powerful magic against Fei Wang.