Yea this as well as the other Kirsten Vs Waackxxxy was like an ace round people were called up and whoever was representing the team could choose to challenge. Amy was basically talking about how it could be fun to battle and so she challenged her.
I really wished they would've asked Amy why she decided to challenge Baby (while knowing how great she's is, like THEY KNOW lol that handshake was real). Basically the teams picked an Ace and the show would pick one of them to be "up for challenge", Baby was chosen to be up for battle but it was up to each Ace to decide if they wanted to battle or not - nobody was thinking about going against Baby then boom Amy stood up - I was shocked 😅 I think she wanted to experience a battle with a known veteran, or she's that confident who knows hehe