Elektra Natchios, usually referred to only by her first name Elektra, is a fictional character in publications from Marvel Comics.
Elektra is a ninja assassin of Greek descent. She wields two bladed sai as her trademark weapon. She is a love interest of the superhero Daredevil, but her violent nature and mercenary lifestyle divide the two. She is one of Frank Miller's best-loved creations, and subsequent writers' use of her is controversial as Marvel had originally promised to not resurrect the character without Miller's permission. She has also appeared as a supporting character of the X-Men's Wolverine.
Elektra's primary abilities are a strong knowledge of martial arts and weaponry. Elektra learned ancient martial arts of China, Siam, and Japan. She is a master combatant with the Japanese Sai, her usual weapon of choice. She is also highly skilled with the katana, daggers, 3-sectional staff and shurikens. She is a master of many Japanese combat forms including Ninjutsu. Elektra is an Olympic-level athlete, strong in gymnastics and swimming, with a high level in athleticism in human strength, speed, agility, and reflexes. She is resistant to pain and extreme heat and cold. She is also able to keep to the shadows and move with such speed that she can remain unseen even in daylight, thus explaining why she is one of Marvel's top killers.
Elektra has naturally enhanced her body through daily, lifelong training. Her speed and agility are probably her greatest assets – she's been known to swipe weapons off of a trained operative before they can finish blinking or dodge the trajectory of incoming bullets. Elektra pushes herself on a daily basis to reach her peak human limits and has high levels of natural endurance, flexibility, and strength.