Two years go our cleric of Anubis used Divine Intervention during a battle with an arcanaloth (fiend) that was impersonating the cat goddess Bast.
When the cleric made the roll successfully, I aske them what they were asking for.
The cleric replied "The foul creature is almost dead, I don't want it to get away. I would like Anubis to trap it here in this temple." I said okay.
They killed the creature, and it just laughed at them as it said "my soul will return from the Hells and you will all pay!" Then it looked shocked as it appeared to turn ghostly then disentegrate.
Cause Anubis isn't a dummy, and his cleric asked for it to be trapped. So Anubis trapped it soul and all, and since the soul couldn't escape to reform...I said it was permanently killed.
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While I can and am empowered to do the same with the new ability, it most likely will tend to be used as written, in which case we may not have had quite the memorable scene as we did.