Vayne vs Sion

Vayne ruthlessly hunts evil-doers, gaining Move Speed when moving toward nearby enemy champions.

Vayne tumbles, maneuvering to carefully place her next shot. Her next attack deals bonus damage.

Vayne tips her bolts with a rare metal, toxic to evil things. The third consecutive attack or ability against the same target deals a percentage of the target's max health as bonus true damage.

Vayne draws a heavy crossbow from her back, and fires a huge bolt at her target, knocking them back and dealing damage. If they collide with terrain, they are impaled, dealing bonus damage and stunning them.

Readying herself for an epic confrontation, Vayne gains increased Attack Damage, Invisibility during Tumble, reduced Tumble cooldown, and more bonus Move Speed from Night Hunter

After being killed, Sion will temporarily reanimate with rapidly decaying Health. His attacks become very rapid, heal him, and deal bonus damage based on his target's maximum Health.

Sion charges a powerful swing in an area in front of himself that will deal damage to enemies when released. If he charges for enough time, enemies hit by the swing will also be knocked up and stunned.

Sion shields himself and can reactivate after 3 seconds to deal Magic Damage to enemies nearby. When Sion kills enemies, he passively gains maximum Health.

Sion fires a short range shockwave that damages and slows and reduces the Armor of the first enemy hit. If the shockwave hits a minion or monster, it will be knocked back, damaging, slowing, and reducing the Armor of all enemies that it passes through.

Sion charges in a direction, ramping up speed over time. He can steer his charge slightly with the mouse cursor location. When he collides with an enemy he deals damage and knocks them up based on the distance he has charged.