Transcription:
probablybadrpgideas:
Give your players a “disintegration gun”.
What it actually does is shoot people into the future. In the final session all the people they shot with it blink into existence around them at once.
celticpyro:
OP please change your url
the roguelike Crawl has a similar mechanism with the “Banishment” ability. Anything you successfully banish goes away, but if you yourself ever go to the abyss there’s a very high chance they’ll be waiting for you.