Spreading Zombification

Select a creature type other than zombies. All
creatures of the chosen type get -1/-1 until end of
turn. If a creature of the chosen type dies this
turn it deals 1 damage to all other creatures of
the chosen type. For each creature that dies this
turn, you create a 1/1 Zombie token with decayed. (This creature can't block and when this creature
attacks, sacrifice it at end of combat.)
"He didnt have to kill all enemies at once. It would be enough to kill some, then raise them as undead to kill