I guess it depends on what B grade means..
I'd guess just unboxed without any accessories, and the bent plate is carrier damage (looking at the state of the shipping box) which is a separate issue which the courier is liable for.
I'd either live with it if the card works fine, or get a refund as it was damaged in transit.
But you might not be able to get that card again for that price so it's basically a judgement call on the OP's part.
I'd guess just unboxed without any accessories, and the bent plate is carrier damage (looking at the state of the shipping box) which is a separate issue which the courier is liable for.
I'd either live with it if the card works fine, or get a refund as it was damaged in transit.
But you might not be able to get that card again for that price so it's basically a judgement call on the OP's part.