Supernatural
I think generally buff rates is 100+ years will be 30%-40% 1000+ years 50%-60% 10000+ years 70%-150% 100000+ years 200%+ ? Unless it is from a really op spirit. Still.. it seems kinda dull for the armor to only do self buffs. Could it eventually shape-shift, camouflage, visual support, shock-wave attacks, shrink earth movement, or explode your inner universe? (lol Saint Seiya)