Bonjour !
Lightning Shock skills 81
Lightning Shock Lv.1 - Magic Skill
Sends an electric current to attack nearby enemies with 69 Power added to M. Atk. Makes the enemy's body rigid for 5 seconds, then paralyzed for 5 seconds. Increases Power upon the consumption of up to 5 souls.
source : http://www.l2gc.com/races/kamael/soul_hound/
Ce skill s'apprend donc lv 81, et non pas 83 comme le dit le forgotten scroll que vend le npc custom.
Merci ^^