The user throws his shield in such a way that it can bounce between up to 3 targets before returning to the user's arm for a perfect refitting. In between each bounce the shield will build up in motion/velocity: delivering a increasingly powerful concussive blow each time it hits a target.
Can hit targets at a range
The final bounce back to the user's hand is the fastest, thus hardest to incercept.
Catching the shield (The arm slipping through the inner bindings for a firm hold) is effortless to those who know this technique.
Leaves the user exposed without a shield
(Where my approval goes, hehexd)