Xerath

Innate: Periodically, Xerath empowers his next basic attack on-hit to restore 30 – 225 (based on level) mana, doubled to 60 – 450 (based on level) against enemy champions.

Mana Surge's cooldown is reduced by 3.5 seconds whenever Xerath kills an enemy.

Active: Xerath charges while being slowed by 0% – 40% (based on channel time) for up to 3 seconds to increase Arcanopulse's range over the first 1.5 to 1.75 seconds of the channel.

Arcanopulse can be recast within the duration. If the charge is interrupted or completes without reactivation, Arcanopulse is cancelled and refunds half the mana cost.

Recast: Xerath becomes unable to act for 0.528 seconds and afterwards fires a beam of energy in a line in the target direction that deals magic damage to enemies hit.

Active: Xerath casts down a blast of arcane energy that strikes the target location after 0.528 seconds, briefly granting sight of the area and dealing magic damage to enemies hit and slowing them by 25% for 2.5 seconds.

Enemies in the epicenter take 66.7% increased damage and are slowed by a greater amount, decaying to 25% over the duration.

Active: Xerath fires an orb of energy in the target direction that deals magic damage to the first enemy hit and stuns them for 0.75 – 2.25 (based on orb travel distance) seconds.

Active: Xerath channels for up to 10 seconds, gaining the ability to recast Rite of the Arcane multiple times after 0.5 seconds within the duration. If Rite of the Arcane ends without any of the recasts being used, half of its cooldown is refunded.

Recast - Arcane Barrage: Xerath catapults an arcane missile that strikes the target location after a 0.627 seconds delay, briefly granting sight of the area and dealing magic damage to enemies hit. Each cast has a static cooldown of 0.627 seconds. After catapulting the first missile, Xerath will reveal himself while there are enemy champions within Rite of the Arcane's range.

Hitting at least one enemy champion grants a stack of Arcane Perfection during the channel, stacking up to a maximum amount. Each stack increases Arcane Barrage's damage.

When there are no enemy champions nearby, Xerath will reveal himself for a couple of seconds if a missile strikes within a distance of an enemy unit.