Scarlet rot

(if this creature deals combat damage to a creature they
are destroyed if you deal combat damage to a legendary creature or player X put scarlet rot counters. Creatures gain -2/-0, for each scarlet rot counter, At the begging of your turn, remove 1 scarlet rot counter from you, and for each Creature, you control they each gain 1 -1/-1 counter and you gain 1 infect counter)