Take Flight (5e Feat)
From D&D Wiki
Prerequisites: You must be a Aasimar
Use your wings as they were intended.
- You gain a permanent flying speed equal to your movement speed. Your speed is reduced by 15ft flying speed while wearing heavy armor.
- You can use your wings to attack an adjacent creature as a bonus action, that creature must make a dexterity saving throw, if failed the creature is knocked prone, if it succeeds on the saving throw the creature is knocked back 5ft (DC = 8 + strength mod + proficiency mod)