Kayle's Intervention will block all damage to a target champion, including true damage.

True damage ignores armor and magic resistance, as well as other forms of damage reduction such as Unbreakable,l Unbreakable Will and Vengeful Maelstrom.Ībilities or summoner spells which deal true damage are still blocked by effects that prevent damage such as the passive on Banshee's Veil item.png Banshee's Veil, Sivir's Spell Spell Shield, Nocturne's Shroud of Darkness.png Shroud of Darkness, and Standard Attacks which deal additional true damage are still capable of being blocked by Pantheon's Aegis Protection. True damage is one of the four types of damage in League of Legends, the others being magic damage, physical damage and pure damage (which is only used by the fountain turrets).