Elemental Susceptibility in ESO is a morph of the Weakness to Elements skill found in the Destruction Staff skill line.
Weakness to Elements in ESO is a Weapon base skill in Destruction Staff and its two morphs are Elemental Susceptibility and Elemental Drain.
Quick Cloak in ESO is a morph of the Blade Cloak base skill that can be found in the Weapon, Dual Wield skill line.
Lethal Arrow is a morph of the Snipe base skill, found in the Weapons Skill lines, Bow skill line.
Draining Shot is a morph of the Scatter Shot base skill, found in the Weapons Skill lines, Bow skill line.