All buffs and debuffs

Instant effect

Heal

Heal is RaidCodex's own word for this effect: the game has no battle-screen name for it. The game gives no separate description for it.

Champions with it

311 champions have a skill with a Heal effect, according to the effect lines in the game data. This lists who has it and on which skill, not how strong it is or how often it happens: values and chances are on each champion's page.

Taken from the game data and not tested in battle here. See Data quality.