Basically, the idea is:
When a enemy is knockbacked by a WEAPON (so shield bump doesn't count) and this hit a wall or any static object, it receives damage based on the speed that it was thrown.
If it were implemented on game, I suppose it would make the game more real and would give more use for knockback, since the knockback is a "hardly controlled beast"... by newbies.
So... that's all folks!
P.S: On case of need of more details, ask please.
EDIT: The knockback damage will also have damage inversely escalated with weapons' speed.
Would the knockback damage scale by Tier (looking at you vials) and also the level of the weapon gear? The Red Saber, for example, does T1 fire damage even in T3. Would a Sealed Sword then do T2 knockback damage in T3 as well?
I like it though, would be a nice help for shield bash.