Reckless Blade

Your reckless nature often gets you into sticky situations. As a result you've developed the skills necessary to fight while outnumbered and surrounded, slicing through every foe and escaping mostly unharmed.

Level 3: Risky Play

At 3rd level, you gain an additional way to use your Sneak Attack; you don't need advantage on the attack roll to use your Sneak Attack against a creature if you are within 5 feet of 2 or more hostile creatures, and you don't have disadvantage on the attack roll. All the other rules for Sneak Attack still apply to you.

Also, when making an ability check using a skill or tool with which you have proficiency, you can choose to roll a d6 and add the number rolled to the check. If the number rolled is a 1, you automatically fail the ability check.

Level 3: Opening Attack

At 3rd level, when you hit a creature with a melee weapon attack they take an extra 1d8 damage of the weapon's damage type. A creature can only take this damage once.

Level 9: Follow-up

At 9th level, you gain the following Cunning Strike option.

Double Strike (Cost: 2d6). Immediately after this attack you can make an extra melee weapon attack against another enemy within range.

Level 13: Debilitating Assault

At 13th level, when you hit an enemy with your sneak attack or an extra attack given by a Cunning Strike that enemy has -2 to all attack rolls against you until the start of your next turn. 

Level 17: Whirlwind Blade

At 17th level, you gain the following Cunning Strike option.

Whirlwind Strike (Cost: 5d6). Immediately after this attack you can make an extra melee weapon attack against every enemy within range.