Of course: I wouldn't say the solution is making it easier right away. I don't think the problem is the speed of the ring or the feints, actually I think the feints are good to have cause it adds variation to the luring part. I think my problem was for the luring part I didn't fully understood what was actually my goal, I wasn't sure if it was to wait for the closing ring to be exactly on top of the smaller white ring or if I had to wait for it to be smaller than the smallest ring. I thought I was doing it right but then at the end the monster got away somehow.
So, I would say adding a simple tutorial showing you visually what a succesful lure looks like would solve most of the issues, and maybe adding a clearer feedback to when the player gets it right.
Thank you, that makes sense! I'll start working on the fixes and the tutorial today. I'll make the first fight a tutorial with a detailed visual explanation of each stage, and add an aggression meter in the first phase to show how many times the minigame needs to be completed, plus a boss HP bar in the second phase. And special thanks for suggesting a visual indicator for success! Until now I only had a sound effect, and it clearly wasn't enough.