Necromancy rhymes with:
absorbency, accountancy, agency, ascendancy, ascendency, bouncy, buoyancy, chancey, chancy, chauncey, chauncy, clancey, clancy, clemency, cogency, competency, complacency, conservancy, consistency, constancy, constituency, consultancy, contingency, counterinsurgency, currency, dancey, dancy, dansie, decency, deficiency, delancey, delancy, delinquency, dependency, despondency, deviancy, discrepancy, dormancy, efficiency, emergency, equivalency, excellency, exigency, expectancy, expediency, fancy, ferrency, fiancee, fluency, francy, frequency, ganci, garnsey, glancy, gurnsey, hesitancy, immunodeficiency, incompetency, inconsistency, inconstancy, incumbency, indecency, inefficiency, infancy, infrequency, insolvency, insurgency, interagency, irrelevancy, kincy, latency, leniency, malignancy, militancy, mincey, mincy, morency, mounsey, muncee, muncey, muncie, muncy, nancy, nonemergency, occupancy, poignancy, potency, pouncey, pregnancy, presidency, proficiency, prudency, quincey, quincy, redundancy, regency, relevancy, residency, resiliency, resurgency, runcie, schmancy, self-sufficiency, solvency, steffanci, stridency, stringency, sufficiency, surrency, teensy, tenancy, tendency, transparency, truancy, urgency, vacancy, vagrancy, vibrancy, vinci, yancey, yancy
Necromancy sounds like:
nanograms, newsroom's, newsrooms, nigerians, nonaccruing