Curse Of Lycanthropy

Dipping your hand in blood and then gripping the target
fiercely, you call on the curse of lycanthropy to destroy your
foe
The target takes 2d6 necrotic damage at the start of their
turn, making a constitution save to take half damage. Making
the save does not end the effect.
If the target dies while this spell is active 1d6 wererats (in
wererat form) claw their way out of its body. The wererats do
not attack you or your allies, but might attack nearby living
creatures. If no target is available, the wererats scurry away
to spread their lycanthropy.