Whenever Swain kills an enemy unit, he regains 9 + (1 × level) mana.
Cost: 60 / 70 / 80 / 90 / 100 Mana
Active: Swain releases his raven at his current location to cripple an enemy, creating a tether between the target and the raven. Over the next 3 seconds, the target takes magic damage each second and is slowed. If enemies walk out of the tether, the effect ends immediately.
Active: Swain afflicts his target with a curse that deals magic damage to them over 4 seconds, and causes any further damage dealt by Swain during this period to be increased by a percentage. This includes summoner spells and items used by Swain.
Toggle: Swain transforms into the form of a vicious raven. During this time up to 3 lesser ravens strike out each second to deal magic damage to nearby enemies, one raven per enemy and prioritizing champions. Swain is healed for 75% of the damage dealt to champions and 25% of the damage dealt to minions and monsters. The mana cost to sustain Ravenous Flock increases every second.