Summon Winged Twilight is a skill located in the Daedric Summoning (which can be found in the Sorcerer skill tree). Summon Winged Twilight is a base skill, and can be morphed into Summon Twilight Tormentor
or Summon Twilight Matriarch
Summon Winged Twilight deals the following types of damage: Shock Damage. Which means that it gets buffed by the following blue champion point trees: Blessed, Elemental Expert, Elf Born, Master at Arms, Quick Recovery, Spell Erosion. Also the following red champion point trees protect against this skill: Elemental Defender, Iron Clad.