This blocking type is a specialised one. You\'ve learned some swings and moves, how to block piercing attacks against you (you move with your sword like it is a fan). So fighting with "sword fan" means, that you will use this knowledge against your enemy to increase your parry chance. If an enemy is using an attack type different than piercing then this block is actually harmful, making your parry worse than with no block. Sword Fan also allows you to better utilize the momentum of Deathkick, making it faster if it connects.

See also: in-mud help for blocks