Vach, Chosen by the Blight

Blight (Whenever this card deals damage to a
creature, place a blight counter on that creature.
At the beginning of each upkeep flip a coin.
If you win, destroy that creature. Otherwise,
put a -1/-1 counter on that creature.)
Whenever a creature with a blight counter on it
dies, create a 1/1 Skeleton creature token with
blight.
"You...will...succumb..."