Kara Kent (born Kara Zor-El) is Supergirl, Clark Kent's cousin from Krypton. She is a member of the House of El, as well as the only daughter of Zor-El.
Chloe Sullivan created a false backstory for the authorities to cover Kara's sudden appearance in Smallville, explaining that she was Clark's cousin on his adoptive father's side, raised in Minnesota for the past 19 years until she was able to track down her one remaining blood relative.
Powers and Stats
Tier: High 6-B | High 4-C
Name: Kara Zor-El (birth name), Kara Kent (adoptive name)
Powers and Abilities: Superhuman Strength and Speed, Invulnerability, Flight, Super Hearing, Telescopic Vision, Microscopic Vision, X-Ray Vision, Heat Vision, Super Breath, Freeze Breath, Telekinesis, Resistance to Telepathy, and Molecular Manipulation
Attack Potency: Small Continent level | Large Star level
Speed: Massively FTL flight speeds, FTL combat and movement speeds (Comparable to, although slower than Clark Kent in speed, and should as fast as the Martian Manhunter) | Massively FTL+ combat and flight (Close to but slower than Superman)
Lifting Strength: Class K | Class Y
Durability: Small Continent level | Large Star level
Standard Equipment: Unknown
Weaknesses: Kryptonite, Red Sun, Magic (has no protection against it)
Key: Season 7 | Season 11