Supercorp oneshots cause I ship it

Medusa

This is an AU, after supercorp admitted there love for each other(Lena still doesn't know Kara is Supergirl), Lena disappeared, Kara blamed herself, became a different person, she quit her job at Catco and only became Supergirl when she was needed, Alex took her to a doctor, she was diagnosed with depression, so Alex took care of her little sister, Kara was slowly healing  

"Kara" Alex says trying to catch her sisters attention 

Kara hummed in response, not really concentrating, she was thinking about Lena 

"Kara seriously, there is an attack at L-Corp" Alex explains to her sister 

After the disappearance of Lena, Jess took over, continuing the company the way Lena would have wanted 

Kara changed into her Alter ego and flew off 

Kara scanned over the building there was someone in the Office 

She flew at top speed into the balcony 

Jess was lying unconscious on the ground

"Who are you" Kara says to the intruder 

She had a black mask covering her mouth and a hood which sat perfectly on her head 

The woman simply charged at Kara

First came a gun shot, which the hero caught in her hand, what she wasn't expecting was punch which knocked her back 

"Who are you and what do you want with L-Corp" 

"I'm medusa" She tell her, she pulls out a green blade 

Medusa pov 

I charged at Supergirl, slicing my blade at her, I got her face 

She screamed out in pain 

"A bit slow I see" I taunt her 

"Please fighting isn't the way" she begs clutching her bleeding cheek

I kick her in the stomach knocking her back 

She lets out a gasp

"Would you look at that, I have rendered the girl of Steel to her knees" I say in triumph 

She stood up shaky 

"If we are going to fight, not in Lena's office" She says 

Lena I've heard that name before, my mind tries to remember, but a headache starts to form so I forget it 

"No I think we are just ok here" I kick her again but this time she blocks it 

She pushes me back into the wall 

I let out a groan

Supergirl walked over and pulled my mask off 

Blood trickle out of my mouth, I look at the ground, and let out a chuckle 

I wipe the blood away and stand up for a fight 

"Lena" Supergirl says 

Kara pov 

I pulled Medusa's mask off, she fall to the ground, I saw a little blood trickle onto the floor, she lets out a chuck and stands back up again 

I stagger back 

No this can't be real, no, that isn't 

"Lena" I mumble 

There is no way, why is she fighting me, why did I hurt her