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Even better if the foe was already almost dead. When you slap something for huge numbers it's also fun having the DM describe the wreckage that's left of your opponents.
I feel like some Table Top games are more prone to this than others, just based off watching some different IP's being played.
That damage amount is freaky. Player sold their soul to roll the most damage anyone will ever see lol.
That kind of nonsense was typical for the campaign :)