The main Ventus Trekker gains 1 stack of Drifting Snow for 10s after casting a skill, stacking up to 3 times. When the main Ventus Trekker deals Auto Attack DMG, 1/2/3 stacks of Drifting Snow inflict the following effect on the target: increases Ventus Auto Attack DMG taken by 6%/12%/18% for 10s. When the main Ventus Trekker deals Skill DMG, 1/2/3 stacks of Drifting Snow inflict the following effect on the target: increases Ventus Skill DMG taken by 2.5%/5%/7.5% for 10s.