Kokonoe

Heat
While Kokonoe is on the battlefield, Murakumo
and Chronophantasma creatures cannot gain -1/-1 counters. Kokonoe gais heat counters equal to the number of -1/-1 counters they would have gained.
Remove all heat counters from Kokonoe, {t}; Deal damage equal to half the number of counters
removed, rounded down.