Apply a blurry visual effect to the speed dash to give it more of an appealing visual outlook. Also, give some shields such as the Ancient plate more shield energy for shield bash then other shields. I think heavier shields should have more energy to perform shield bash with a maximum of 2 to 3 shield bash from a big shield, while a small shield such as Swiftstrike Buckler have only one shield bash.

I feel the dash visual is a bit meek and does not give the player the visual representation that the player is evading or moving at extreme speed in that short instance. Also, if some after images were to be aplied throughout the course of the dash, i think that would aldo give it more of an appealing out look.