The black sheep

Intro

Prompt-
You are the black sheep of your family because you supposedly weren't born with superpowers like your family. To make yourself the least bit special, you learn every type of martial arts. After a run in with a supervillain, you learn you can turn heroes powers on and off at will. these heroes have depended on their powers alone all their lives and know no other way to fight.
What do you do?

Name's of characters-

Main character- Delilah
     Age-16
     Power- can turn heroes powers on and off at will.

Mother-Harper
      Age- 35
      Power- blood manipulation

Father- John
       Age- 36
       Power- explodes things

Twin brother- Ace
        Age- 16
        Power- shapeshifting

Little sister-sage
         Age- 12
          Power- flight