User blog comment:Crimson and Darkness/Volume 25 discussion blog/@comment-34061653-20180624161240/@comment-181.115.109.33-20180624230911

Well right now in Issei's case as for volume 24 it protects him form life shortening moves such as grim reaper scythes other than that it  strengthen the user moves and gives a massive boost in power. now in prime Ophis case it appears that infinite grant's the same things as above and complete invulnerability against anything as shown when she tanked without effort pod from Sirzechs and the true longinus.

anon above me, i agree except for that part of Vali's abilities not working on him, i mean when they face off everyone expects an equal footing, what meaning will there fight have if Vali can't use his primal abilities.