Magma Shell is a skill located in the Earthen Heart (which can be found in the Dragonknight skill tree). Magma Shell is an ultimate. Magma Shell is a morph of
Magma Armor.
Magma Shell deals the following types of damage: Flame Damage. Which means that it gets buffed by the following blue champion point trees: Bastion, Elemental Expert, Elf Born, Master at Arms, Spell Erosion. Also the following red champion point trees protect against this skill: Elemental Defender, Iron Clad.
ESO Skillbook