Peter
"There are dangers in the world you simply cannot just hit your way out of." 

She would explain and hold her hand out, summoning another Dusk to her side. 

"Those portals of darkness you just entered to get here is dangerous to the heart... Though I can sense you rely on Darkness to an extent."
Robert
"Of course they're dangers that I can't bonk my way out of. That's why most of my arsenal is spells made for incredible amounts of damage. As for the Darkness thing? Yeah, I do a tad. But it's mostly just one or two things. I like using neutral magic most. No real strengths but also no real weaknesses either. Perfectly balanced. It's why I'm chaotic... Kinda. The world is soooo boring just sticking to the rules allll the time sooooo I decide to create some chaos and big flashy booms!"
Peter
"It is for the best for you to stop using the darkness. Else your heart will be swallowed by it. But I suppose that adds to your... Grandiose nature as you put it."

She would go on to say, lingering on the word heart before going on. 

"However, I think this conversation has gone on for long enough. Have fun in Traverse Town."

The stranger announced and snapped her fingers, a pillar of darkness surrounding her and the Dusk, waping them to places unknown.