nuzlockes are kinda dumb because it doesn't impose any sort of limits on the most unbalancing factor in an role playing games- level gains/experience points.
They come down to tests of patience- how willing are you to spend unreasonable amounts of time leveling up your pokemon, perhaps unnecessarily?
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You did indeed stab me in the back. However, you are only level one, whilst I am level 50. That means I should remain uninjured.