# Speedy *Source: Player's Handbook (2024) p. 208* **Prerequisite**: 4th; Dexterity 13 or higher or 4th; Constitution 13 or higher You gain the following benefits. **Ability Score Increase.** Increase your Dexterity or Constitution by 1, to a maximum of 20. **Speed Increase.** Your Speed increases by 10 feet. **Dash over Difficult Terrain.** When you take the [Dash](Mechanics/CLI/rules/actions.md#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.