Commentary:
Lubo has finally transformed and is ready to fight, much to Auda's surprise. Judging by the look on her face in panel 4, I think she has no issues about this, since it's de-confirming the doubts and worries she was having in the previous chapter and beginning of this chapter.
I just realized that I never really gave any indication that Yuari knew her friend Lobok had a power. But I'm sure this is a thing I'm sure at least some readers might have thought of. But yeah now that fact is out there. Probably useful for fishing when you can suddenly get bigger and stronger to pull in your big catch.
ポン (pon) is used for a magical transformation
Batuu: Yeah yeah, go ahead and get bigger. That thing's still gonna chomp you up =w=