Echo - Phantom·Thundering Mephis

Use the Echo skill, transform into Thundering Mephis, shuttle attack, can be used up to VI times, the first V times each cause 49.76% damage, the final hit causes 248.80% Electro damage, the thunder causes 41.46% Electro damage. After the final hit, the current Character's Electro damage increases by 12%, the Resonance Liberation damage increases by 12%, lasts for 15 seconds.
Skill cooldown: 25 seconds.