What's the use of the original stone of the legendary hero of Altman?

It can give Otto soldiers life and defense.

Among the legendary heroes of Altman, there are two kinds of very powerful gems, one of which can give Altman soldiers life and defense, and we call it the original stone of light and shadow. Another kind of attack and crit given to Otto soldiers is called crushing the original stone.

Altman Legend Hero is an ARPG single player game developed by Hefu Tang Le Animation. The main characters are Diga, Ob, Regedo, Ciro and beria.