In a random encounter, its impossible for Batman to know how strong X-23 is and will probably make the mistake of going easy on her. And, even if he found out he wouldn't know about her healing factor and would still hold back a little.
While Batman could win if he knew about her before hand and beat her the same way he beat the talons but in a random encounter X-23 definitely wins
Will this comic make me like Harper Row? because until now I've unfairly hated her because I thought she was going to replace Damian as Robin or Dick as Nightwing. Now that I know that she's not I thought I'd give her a chance.