Who said "I used to think I was unstoppable. Then I learned the cost."?

This quote is attributed to Valkyrie.

I used to think I was unstoppable. Then I learned the cost. - Valkyrie

"I used to think I was unstoppable. Then I learned the cost."

Valkyrie Wisdom

"I'm not a people person."

"Scrapper 142 - that was my name. Not a great name, but it's what I had."

"You're a good warrior. Too bad you're also stupid."

"I've been fighting my whole life. It's the only thing I know."

"I'm not angry, I'm just disappointed."

"The best things in life are free."

"You can't have everything in life, but you can have what matters most."

"A woman's intuition is rarely wrong."