Draconian Wingbeat (4e Feat)
From D&D Wiki
Draconian Wingbeat [Racial]
With use your wings have grown stronger, allowing for better flight.
Prerequisite: Level 11, Bozak or kapak draconian, Instinctive Flight racial feature, Draconian Wings
Benefit: Your Fly Speed gains the Hover trait and your Altitude Limit increases by 1. Additionally you can remain flying as a Sustain Minor.