Fenrir's superpower...

If I had a superpower, it would be controling energy.

I could use it to create force fields or summon energy balls. 

It could help me defend people around me or even myself. 

I could also use it to manipulate objects around me, like for instance if I happen to forget my bag in a random room in my house, I would reach it with my mind and bring it back to me while manipulating it with the energy around.

I'm going to describe it more precisely. 

I could transform or shape existing energy into many forms. 

It could be withdrawn from objects or living being like plants, animals or even human, but no worries, I won't harm anyone, I'm not that evil (lol). 

I would use it to move things, open doors, tidy my room or use my computer from my bed ahah. [How lazy can one be? Mrs P.]

Although I think it's very boring to have powers for those kind of things, a better purpose would be perfect. 

I'd prefer to use it for an offensive and defensive purpose. 

In case of real danger, the energy could be taken from air, in that way I would create a force field and use it as a shield and protect those in danger … and me at the same time (loool). 

To attack foes, I'd throw them things or summon energy balls like I mentioned earlier hihihi.

When I'd summon the energy, it would have a gold-ish light. (here's a drawing of a character I've created, she has that power lol )

             

However, like every power-owner, I'd have limitations. 

Like I said before, the energy could only be extractable, otherwise, if I could create it from thin air whenever I want, I could have unlimited ressources … being invicible isn't very funny. 

Moreover, I'd be limited with the summoned amount of energy. 

I couldn't hold too many and I'd have a limit per day, If I'd dare to exceed this limit, I'd exhaust myself baaadly. 

Those limits would depend on my strength, precision, mass and precision.

If I could compare to a fictionnal character, it would be Wanda Maximoff aka Scarlet Witch from the Marvel universe, she uses telekinesis but it's still kind of similar.