Imagine this kind of situation when using the Medusa Lancer: when you are doing the Free Quest or similar, using the Medusa Lancer, because it is effective against Archers, when you place 3 Medusa Lancer cards, be it Quick, Buster or Arts, out of nowhere, after the extra Attack, she stands still like a statue, and the other enemies moved.

It's happened 3 times and this is the 4th time, I closed and opened the game, and everything was normal.