At this point, Dipper had successfully established himself as an absolute terror on the battlefield. Not only was he using Gravity Falls constructs, but he started getting creative and merging them together into new monstrosities.

Extra legs and torsos on the arachnimorphs so that they were the spider equivalent of the Multi-bear. The tentacles and lamprey-like mouth of the Cycloptopus replacing the faces of the manotaurs. A pterodactyl with the head of the Gobblewonker.

The yellows were basically all claws and teeth, but Dipper wasn't cowed by it and he'd seen that enough before to make it his own.

"Do the claws bother you?" he crowed while a yellow screamed as it was menaced by the shapeshifter. "Wow, I'd think the claws wouldn't bother you since you have claws, too."

While the yellows were used to their fellow toothy, clawed comrades, they weren't used to seeing terrifying things thrown at them by Green Lanterns, let alone by an extremely enthusiastic child who was apparently delighting in tormenting them. It was just creepy enough that they were starting to actually fear him. After all, other than the Children of the White Lobe, it wasn't exactly as if there were any children among them -- and even most of the yellows found the Children of the White Lobe eerie. There were also usually no children allied with their enemies, because the green, blue, violet, and indigo Lanterns usually recruited people that were older.

Dipper had a multiversal constant working in his favor: kids that were delighted about monsters were just plain creepy.