I don't know if you could kill schah/albumen with zero nirvanas
Done Schah/Albumen/Vinipata/Erinys/Onychophora/Teles/WoC with:
gridarvor smn x6
run
geo
2 leeches
(+outside cor on all, inside brd on albumen/vini.. but cor could take a leech spot)
and was able to win reliably over quite a few kills before I bothered with Nirvanas. So yes, you can win without nirvanas(and even carry leeches). Don't see why kirin couldn't be done without it, and zerde can be as well, but I've always manaburned those.