Talk:Overlord Volume 10/@comment-112.198.79.213-20160609220725/@comment-27033694-20160610120941

resurrection spells: 5th tier- Raise Dead, 7th tier- Resurrection, 9th tier- True Resurrection.

Ainz used a 9th necromacy spell which invalids lower tier resurrection spell so only the 9th True Resurrection could bring back Gazef. And even the Thecracy wouldn't be able to use a 9th tier spell.