Complex sentence: Raised as an only child by her adoptive parents, Paige enters the series as the fiercely independent youngest half-sister and helps reconstitute the new Power of Three in the Charmed Ones following the death of their eldest sister Prue Halliwell.
Split into simpler sentences: Raised as an only child by her adoptive parents, Paige enters the series as the fiercely independent youngest half-sister in the new incarnation of the Charmed Ones. Paige reconstitutes the new Power of Three in the Charmed Ones after the death of their eldest sister Prue Halliwell.