Esoterica: Desecration Field

As an additional cost to cast Esoterica: Desecration Field, pay half your life, rounded up
Esoterica: Desecration Field enters the battlefield with X death counters on it, where X
is the amount of life paid to cast Esoterica: Desecration Field.
Nonblack creatures you don't control get -1/-1
for each death counter on Esoterica: Desecration Field.