Heal

Heal is a summoner spell that instantly restores health to your champion and a nearby ally, and grants both a short burst of movement speed. The healing is reduced on a target who has been healed by Heal recently, which discourages stacking it across a team.

It is most common in the bottom lane, where the carry and support each value the extra survivability and the speed boost to dodge skillshots or chase a kill. Heal can flip a close fight by undoing burst damage at the last moment, though it is countered by Grievous Wounds effects such as the one Ignite applies.