Regle is a large, maroon-colored bird. Its head has a unique crown-like structure of feathers that resembles a six-pointed star; this "crown" encircles its head. It also has a small ridge of feathers running down its neck. Regle has two large eyes and a large, orange, hooked beak. Regle has a patch of white on its stomach and a white collar around its neck with black spots. It has two enormous wings with a trim on the edges on the feathers; this trim is white. Regle has a large cape-shaped tail with a similar trim, with added black spots. It also has two thin, orange legs with three toes; two in front and one in back. These toes end in black talons.
Royalgle's glare is intimidating enough to get other Meta Monsters to do its bidding. It is able to fly at over 200mph.
Despite routinely forcing other monsters to work for it, Royalgle is a noble and loyal Meta Monster that respects its servants greatly.
Regle is normally found in grasslands and forests.
It transforms from Regle at Level .
"Royalgle can gather a collection of followers with its royal glare, but it greatly respects its servants."
- Royalgle is the thirtieth Meta Monster in the Encyclopedia.
At first glance, Royalgle appears to be based on a bald eagle. However, it has more in common with crowned eagles and harpy eagles, due to the crown-like feather arrangement on its face. It is also inspired by the classic depiction of a king.
Royalgle is a combination of royal and eagle. It may also include the word royale.