[spoiler]An's play-style is exactly that. She'll try to play defensive and punish whenever she can, though Luck can only do so much. The steps to beating her? Get rid of the shield, whether that be through disarming her of it, cutting her arm off, or slamming into it so much that it eventually becomes useless. After that, Anri is much more reckless, left without defense. It would be great to just shoot her up then, as her armor isn't too great around her stomach and chest... [/spoiler]