There are days where I wish I had the power of a Moke. To be able to shrink down to tiny version of myself to avoid people… that’s sounds incredibly useful.
Of course, people wanting to turn you into a shrinking purse is quite the downside.
Moke

Shrinking doesn’t immediately make you hidden. In D&D, mechanically speaking, you are not hidden until you use your Action to Hide. Hence why I gave the Moke a little reaction that makes sure it has a chance to get away before its ever been spotted, or when a hunter is bearing down on it. Making the shrink ability a bonus action means that it can change size on its turn and then take the Hide action in the same round.
Otherwise the Moke would go small and run around for six seconds, before deciding to hide. Less impressive.
Unless your a level 1 character, alone, with a negative score to your constitution, 1 point of damage is not going to make any impact on the adventurers. A quest to collect and/or rescue these critters would be a much more interesting experience than combat. And if the quest giver is looking to harvest the Moke, you might get a very fancy coin purse out of the deal.
Thank You For Reading
The other Fantastic Beasts, no turned into Dungeons & Dragons monsters, can be found here.