I had a chat with our design team and right now this is intentional. Apostacy converts Dodge rating into Glancing Blow and Corsair’s Set converts Glancing Blow into Block chance, this is a double conversion. Our design at this time doesn’t support double conversions.
Block Rogue is a restrictive playstyle. You give up damage, ailment application and attack speed for survivability. Trade offs like these is what makes uniques/sets interesting and fun to play.
The only concern I have is that this set is that it is confusing with how it interacts with other conversions. In the future we will find a better way to get this information across to players in a way that is easy to understand.
It isn’t a bug, it’s a side effect because we don’t support double conversions.
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