Speedy

Source: Player's Handbook (2024)

You gain the following benefits.

Ability Score Increase
Increase your Dexterity or Constitution score by 1, to a maximum of 20.

Speed Increase
Your Speed increases by 10 feet.

Dash over Difficult Terrain
When you take the Dash action on your turn, Difficult Terrain doesn't cost you extra movement for the rest of that turn.

Agile Movement
Opportunity Attacks have Disadvantage against you.