Talk:Ainz Ooal Gown/Abilities and Powers/@comment-2001:EE0:4650:BDC0:54BA:EB8B:4F5C:CD57-20180214140254/@comment-30468100-20180309212956

Shaltear as an Undead has immunity to Instant Death skills, it's one of their Race Traits. The only way he could activate Instant Death on her was through The Goal Of All Life Is Death, and that has a 100 hour cooldown. He had to save that for when the Einharjer came out so he could hit both the Einharjer and Shalltear, so he couldn't use a Single Target spell, had to be AoE.