Skirmisher

You are accustomed to the battlefield, able to keep your wits about you even in the middle of the most chaotic combat.  You gain the following benefits:

-Immediately after you are attacked while it is not your turn, you may use your reaction to move up to half your movement speed without provoking opportunity attacks.  You may take this reaction whether the attack that provoked it hits or misses you.

-Whenever you use your reaction to make an attack of opportunity, you may also move up to half your movement speed as part of that same action.  This movement does not provoke opportunity attacks.