Kennen Ability (LoL): Lightning Rush

Kennen gains 335 movement speed as well as 10 / 20 / 30 / 40 / 50 increased Armor and Magic Resistance, and the ability to pass through units for up to three seconds, but he is unable to attack. Lightning Rush deals 85 / 125 / 165 / 205 / 245 (+80% of ability power) magic damage and adds a Mark of the Storm to any hostile unit he passes through; deals half damage to minions.

Kennen is refunded 40 energy if he passes through an enemy while using this spell, but can only gain this effect once per cast.

Lightning Rush can be cancelled early by reactivating the ability. Kennen gains 30 / 40 / 50 / 60 / 70% attack speed for 4 seconds upon exiting Lightning Rush