Hankyou Hankyou no Mi

Reaction Reaction Fruit
This paramecia type devils fruit grants the user the ability to create a "room" the size of this room can be altered depending on the users needs but the larger the area the more stamina it drains. This room acts as a perimeter to discern any and all incoming attacks, once these attacks are found the users body reacts automatically at its maximum speed to counter, block, parry the incoming attacks. The way the user defends against these attacks depends on how they are trained or how they personally think the best way to deal with it is, usually these reactions are committed to muscle memory after a few uses allowing for more and more counters to be used.

Weaknesses
Any non tangible attack bypasses this fruits main ability, meaning that the user could at most dodge it but has no real way of countering it. Any attack that is brand new to the user could shock them out of thinking of a way to counter it. Any attack that would encompass the entire area of the "room" would cause an error in the fruit making it impossible to counter, parry, dodge.