Sieni, Sporecap Bloom

At the beginning of your upkeep, put a spore
counter on Sieni and you lose life equal to the
number of Saprolings you control. Then if there
are three or more spore counters on Sieni,
remove them all and create a 1/1 green Saproling
creature token.
All Saprolings have "This creature can't be
sacrificed unless its controller pays {1}" and
"When this creature dies, scry 1."