combat effect - parry

[dubbleD]

i thought of an idea of 'parrying' or 'blocking' in combat.
what i mean is this:
eg. 2 people fighting each other.
if person A punches person B when person B is blocking, there will be like an animation or something that shows kind of like a 'disruption' of the attack.
like a swing that gets stopped or rebounded half way swung. when attack collide with defend, both react in certain ways.

what i thought so far was:
1. opoint an itr/kind 8 (with dvx to a itr/kind3 frame) object at punch
2. create an extra bdy point at defend frames which is placed high up or down y: 1000
3.the object is spawn in front of puncher in x axis but in y axis, is really high up. therefore, since the defend frame will have a bdy point at this frame, the ball will stick to the puncher. with dvx to an itr/kind 3 frame, this will react with the defender and send him to a set of new frames.
4. these new frames are the parry effect.

when i tried it, i had lots of bugs because im still quite new to this itr/kind 8 and itr/kind 3 stuff.
what do you think of this idea? does anyone have suggestions of making it simpler? is my explanation confusing?