You can see in dim light within 60ft of you as if it were bright light, and in darkness as if it were dim light. You can’t discern color in darkness, only shades of gray.

As an action you can magically read the surface thoughts of one creature within 60ft of you. The effect can penetrate barriers, but 3 feet of wood or dirt, two feet of stone, 2 inches of metal, or a thin sheet of lead blocks it. While the target is in range, you can continue reading it’s thoughts, as long as your concentration isn’t broken (as if concentrating on a spell). While reading the target’s mind, you have advantage on Wisdom (Insight) and Charisma (Deception, Intimidation, and Persuasion) checks against the target.

You can use your action to polymorph into a Small or Medium humanoid you have seen, or back into your true form. Your statistics, other than your size, are the same in each form. Any equipment you are wearing or carrying isn’t transformed. You revert to your true form if you die.

Common

In the first round of a combat, you have advantage on attack rolls against any creatures you surprised

If you surprise a creature and hit it with an attack within the first round of combat, the target takes an extra 3d6 damage from the attack