Sleepless

At the beginning of your upkeep, create a 1/1
green cremling creature token.
Sacrifice X insect, pest, or cremling creatures,
put that many +1/+1 counters on Sleepless.
Remove any X +1/+1 counters from Sleepless
and create X 1/1 green cremling creature tokens.
If Sleepless would be removed from the
battlefield, create X 1/1 green cremling creature
tokens were X is the number of +1/+1 counters
on Sleepless