I mean you don't have to copy verbatim Shield of Force from GW1. You can make it like Full Counter with only 1.5s duration. It is balanced by the fact that VoC has waayyy longer CD than FC, and the fact that unblockables still go through it. As for tell, you can probably just copy and paste that giant shield animation from GW1. Or another idea is make it like Bonetti's Defense. It will block for like 2-2.5s, but if you use any other skill aside from dodge-roll (be it weapon or utilities), it will end. Just some ideas that I think would be beneficial w/o being too overpowered.