Vitality -RR% on Nightblade's Night's Chill

aside from multi summon limit increase, what would even be the appropriate devil build/mod be? :thinking:
*since the whole “any devil mod applies to main node thus doesn’t stack” thingy, so dmg scaling gets limited without more summons

i did the morgo cold sav omen ritualist meme with it, which was kinda fun, (probably way less optimal then your setup), and that just got made fairly/even more redundant on 1.6 because of the changes basically making the whole cold morgo advantage gone