Chansey

A rare and elusive Pokemon rumored to bring happiness to those who capture it. In "Pokemon Emergency," Ash and Pikachu find themselves weak after an encounter with a flock of wild Spearow, with Pikachu's fate resting in Ash's hands! With the help of Officer Jenny, Ash rushes Pikachu to the Viridian City Pokemon Center, where Nurse Joy and the attending Pokemon, Nurse Chansey, take Pikachu to the critical Pokemon care unit.

First appearance: Episode 2—"Pokemon Emergency"