World Savior is one of the Twenty World Items of YGGDRASIL.
World Savior is one of the most powerful World Items in YGGDRASIL.
World Savior is a club-shaped item.
World Savior is a kind of World Item which is very weak in its initiatory stage and only had the power of an ordinary club. However, World Savior gets stronger with time to the point that the person wielding it can even conquer the Great Tomb of Nazarick at their fullest. In other words, this also includes the combined strength with all the guild members of Ainz Ooal Gown put together.