In my opinion, body mechanics are the most important part of animation. Their priority follows the order of center of gravity, legs, upper body, arms, and head.

At the initial stage of creation, it’s essential to control the rhythm. By using blocking, you can create keyframes and adjust the timing to achieve a smooth overall rhythm, which can be considered the skeleton and framework of the entire animation.
Next, focus on the body’s center of gravity and footwork, avoiding any sliding foot issues. When displaying the center of gravity independently, the overall rhythm will resemble a bouncing ball.

In the final phase of refining details, the movements of the head and weapons can be tracked using tools. Like the tail of a small ball, they should follow the body’s motion and should be presented in as smooth an arc as possible.