Turns out theres a small admission test when a new pokemon wants to join the guild. They gotta meet with the guildmaster! Now this serperior is very kind and sweet, but every so often she likes to have fun too.
So each new poke meets with her, and is eaten!
For one, to give them a taste of being gobbled up, since that could happen at any time on a mission!
And two, to give her snack and show um whos boss~

Now... Unfortunately, sliggoo kind of tastes... Awful. Really awful. Like eating a skittles bag full of slugs awful. So Awful than not even she can keep the slimy poke down!
So while she wasnt able to keep from hacking the little gal back up, she did pass the test... Sort of. Honestly i think the guild master would die happy if she never had to taste another sliggoo again.
And yes, this sliggoo was Slush, the goodra ive been drawing~