First suggestion: ik this kinda leaves the purpose of the mod, but imagine if you made idk, an animation where the character jumps with fire, it should deal damage, so it would be cool if you could put a hitbox on certain animations.

Second suggestion: Particles, would be cool wouldn't it? coloring and putting particles from the game into one of the animations in certain parts of the character, selecting what type of animation would those particles play is the current idea i have about this, like, selecting if the particles would play a shooting animation, keep generating on one single, and place until the animation stops or just once.