Necrotic Dragon

Flying, Deathtouch
Whenever a creature that Necrotic Dragon has
dealt damage to dies, create a 2/2 zombie.
Put a deathtouch, first strike or
lifelink counter on it at random.
These specimens are affected by the swamps
they call their homes.The creatures they kill
come back as undead warriors who will
fanatically protect their creators.-The Tome of Dragons