This isnt the case of a random Chinese printer moving in on Magic because they read about it on a blog
It's an expanding archetype that Magic revisits every couple of sets, and it's appeared across a number of different color combinations so far
Although shield counters are the most common, there are also +1/+1 counters, -1/-1 counters, and feather counters to name a few
Prince Eric, Expert Helmsman Put your opponent in choppy waters Prince Eric, Expert Helmsman is a ruby card that you play whenever theres an opposing character that youre desperate to get rid of without having to use one of your precious song or action cards
Presumably, your opponent is going to play creatures at some point
The offline aspect can be slightly inconvenient since you cant start cards on one computer and open them on another, but you can simply email yourself the file or stick it into the cloud or something and download MSE on your second device