Upping my kill count across the infinite realities

So a serial killer wakes up as carrion in RWBY and goes from there slaughtering, maiming, and torturing anyone he comes across. Tags: Reincarnation, multiverse, opmc, nonhuman mc, fucktheplot, biomass, crossover, evilmc, maincast might die, rwby, system, slaughter, gore (Warning, amateur here so dont blame me if this is ass, also for the most part this will be gore porn)