Addendum

The wings should also be baleful.

The Core Pegasus Fault

Pegasuses don't look tough enough. They should have eight wings and baleful eyes.

Restrictions Aren't Everything

Every single mech story is pegasus-adjacent fantasy. Not just B'tx. All of them.

Important Clarification

A griffin does not qualify a story as pegasus-adjacent fantasy unless, at some point in the narrative, a person rides it. This rule is unquestionably correct.

Missing Out on Trends

Unfortunately, Then We Expand is not pegasus-adjacent fantasy, but there is a griffin.

The Newest Subgenre

Pegasus-Adjacent Fantasy