Absorbing negative emotions and weaponising that

[Migue79]

So… Long story short: character has been shown to be able to extract emotions and thoughts out of someone, and then use those emotions to conjure up another being that is essentially a collection of negative thoughts and embodying despair. What abilities would the former character have?

 

[TheGreatJedi13]

Empathic Manipulation with Creation
At least that's what I listed on a character I know