Anubis

I am a God with a canine head.

In Egypt, I am the God of the dead.

Usher of souls into the afterlife.

Death is but a doorway to new life.

Give me your heart to weigh.

The scale will determine if the soul can stay.

Be devoured by Ammit, if heavier than a feather.

Impurity brings pain and suffering forever.

I am the guard dog of hell.

Stench of the dead, I always smell.

I have the power and authority to judge.

No worries, my judgement doesn't hold any grudge.