Parasitic Dragon

Flying
Equipped creature gets a 0/-1 counter every turn
and has Petrified (Target creature can't attack,
block and loses all abilities).
Whenever equipped creature dies,
create X 1/1 black Parasitic Brood with "{t},
Sacrifice creature: Deal 1 damage to any target",
where X is the number of counters that equipped creature had.
Equip {2}