Hello, and thank you for your feedback and for your interest in my plugins! 🙌 I will localize Winter Breath for you as well then.
Regarding the Parry System, I've been working on a much more robust standalone version for MZ. It's been a challenging because the original plugin depended on another system (SRD's Active Defense), so I've had to build my own original implementation from scratch. The good news is that this new version will be even more complete than the MV version.
As for VisuStella compatibility, I haven't tested it with their MZ plugins yet because I don't own them. However, I believe it should be relatively easy to make them work together since my MV version already works with Yanfly's original Action Sequence system, and as far as I know, it's developed by the same team behind VisuStella. Since my system is non-destructive and doesn't overwrite the core battle states or instances used by other systems, I don't expect any major compatibility issues.
At some point I'll need to test it with VisuStella's Action Sequence to be certain, because I know a lot of people use them, and they're very good and talented developers as well.