Structured Entropy is a skill located in the Mages Guild (which can be found in the Guild skill tree). Structured Entropy is a morph of
Entropy.
Structured Entropy deals the following types of damage: Magic Damage. Which means that it gets buffed by the following blue champion point trees: Blessed, Elemental Expert, Elf Born, Quick Recovery, Spell Erosion, Thaumaturge. Also the following red champion point trees protect against this skill: Elemental Defender, Thick Skinned.
ESO Skillbook