Runner

Runner is a subclass of rouge who, specialize in being the fastest, and often stop thieves and assassins. That doesn't mean they don't play dirty, they can use cheap tactics, and often do. 

Speed Demon

At level 3, You can add a extra 15ft of distance to your turn as a bonus action twice, in a short rest. 

Dance of Dodge

At level 9, as a reaction you quickly dodge out of the way twice per long rest. 

This number increases to, 3 for level 10, 4 for level 14, & 5 for level 18.

Offensive Speed

At level 13, You move so fast that you sneakily attack someone, without them noticing, you can mid movement attack someone with sneak attack, but you stop an extra 10ft from where you were heading, you deal 1d4 damage +sneak attack dice. 

You gain this ability back, after a short rest. 

Avoid to Destroy

At level 17, you are no longer able to be hit by attacks of opportunity, and you get advantage on all initiative and dexterity attack rolls.