
Prerequisite: Requires a Dexterity score of 13 or higher
You are skilled at leaping, jumping and flying.
• YourDexterity score increases by +1.
• You gain expertise with the Acrobatics proficiency.
• You can stand from prone by only expending 5’ of your total movement.
• Once per short rest you can gain advantage on any Dexterity-based skill check.

Why did someone give this a down vote?
Because it's poorly worded and barely passes mechanically
The expertise needs better wording, as does the advantage. Could also use a jumping based effect, perhaps instead of the advantage.