If you have 8 Darkness Pokemon on your bench including a Weavile, and you devolve it into a Water type Sneasel, can you discard just the Sneasel and stop, or do you have to continue discarding benched Pokemon down to 5?
Once you begin discarding Pokemon you must complete the full action of getting down to 5 benched Pokemon, even if you don't have any non-Darkness Pokemon on your bench any more.
Source: Darkness Ablaze FAQ (2020-07-31), TPCi Rules Team (2020-08-13)

Relevant cards

Note: All applicable cards may not be listed below.
SWSH3_117
SWSH3_117
SWSH3_192
SWSH3_192