Clusterfek

Every time a creature under your control dies,
all fleshling creatures under your control gain +1/+1.
At the end of your upkeep, create a 1/1 fleshling
token.
If this creature dies you may pay {x}, where X
needs to be lower than the current amount of
+1/+1 counters on this creature. Create X 1/1 fleshling creatures.