When attacking, if you carefully time your attacks from one to the next, you will see a gold circle appear around you accompanied with a little zipping tone. You can also time your weapon skill attacks to do this as well. This increases your damage by about 25%, and if the element of your weapon is in opposition to the enemy's element, you can get a damage increase of about 50%. Time your button presses correctly at the end of your swing and you can do a lot more devastating damage.