Curserot Incubator

At the beginning of your upkeep, put a spore
counter on Curserot Incubator. Then, if it has
three or more spore counters on it, sacrifice it.
When Curserot Incubator die, create a number
of green 1/1 Saproling creature tokens with
"This creature has deathtouch as long as you
control a black creature" equal to the number of
spore counters on Curserot Incubator.