Terra

Terra was a life essence created by the alchemist Kierkan. She wanted a more independent life, and escaped from Kierkan's lair in order to possess one of the Charmed Ones. She possessed a businessman and forced him to lead her to the sisters. She gained a temporary victory when she possessed Piper Halliwell.

Kierkan wanted to track her down and alter her chemistry, but Terra anticipated this and forced Piper to call Prue and Phoebe back to the manor. She then tricked the sisters into vanquishing Kierkan. However, Prue and Phoebe figured out Terra's scheme, and wrote a spell to eject her from Piper. Unfortunately, they needed the Power of Three to expel her.

Terra was created from Kierkan's blood, giving her the powers of an alchemist. She was thus equivalent in strength to an upper-level demon, and grew even more powerful with the addition of Piper's powers. She was thus unwilling to leave Piper's body, knowing full well that Piper's soul would eventually die.

Prue realized that since Terra could use her alchemist powers to heal Piper. She telekinetically threw a knife at Piper (the only non-magical way Terra knew to leave a body was a knife to the heart). While Leo bent over Piper's lifeless body, Terra entered him. Prue and Phoebe then demanded that Terra bring Piper back to life. Otherwise, they would have put Terra back in her essence bearer, a tiny vial Kierkan had used to create and hold her. However, if she brought Piper back to life, then she could have the essence bearer. Terra agreed and resurrected Piper. She then destroyed the essence bearer. The sisters then used the spell Prue and Phoebe wrote earlier to forcibly remove Terra from Leo. Terra was vanquished almost immediately, as she'd destroyed her only means of survival.

Appearances
Terra appeared in a total of 1 episode throughout the course of the series.


 * Season 3
 * Coyote Piper