Add Effect - Bladesong / Bladesinging

3 times per long rest, you can use a bonus action to start a Bladesong, which lasts for 1 minute and grants you the following benefits:

You gain a +2 bonus to your AC, your walking speed increases by 10 ft., you have advantage on Acrobatics checks, and you gain a +2 bonus to any CON saving throw you make to maintain your concentration on a spell.

It ends early if you are incapacitated, if you don medium or heavy armor or a shield, or if you use two hands to make an attack with a weapon. You can also dismiss the Bladesong at any time you choose (no action required).