Radiant Destruction is a skill located in the Dawn's Wrath (which can be found in the Templar skill tree). Radiant Destruction is a base skill, and can be morphed into Radiant Glory
or Radiant Oppresion
Radiant Destruction deals the following types of damage: Magic Damage. Which means that it gets buffed by the following blue champion point trees: Elemental Expert, Elf Born, Spell Erosion, Thaumaturge. Also the following red champion point trees protect against this skill: Elemental Defender, Thick Skinned.