Voodoo Dolls

At the beginning of your upkeep, put a pin counter
on Voodoo Doll. At the beginning of your end step,
if Voodoo Doll is untapped, destroy Voodoo Doll
and it deals damage to you equal to the number of
pin counters on it.

{c}{c},{t}: Voodoo Doll deals damage equal to the
number of pin counters on it to any target. X is
the number of pin counters on Voodoo Doll.