Morgana Ability (LoL): Tormented Shadow

Morgana ignites the ground for 5 seconds, dealing 6 / 11.5 / 17 / 22.5 / 28 (+8.5% of ability power) magic damage per second, increased by up to 170% depending on the targets' percentage missing health. This ability's cooldown is reduced by 5% every time Morgana is healed by Soul Siphon.